2 STROKE WORLD .net

The 2-Stroke Garage => Micro Muscle: Under 100cc's => Topic started by: m in sc on August 07, 2019, 11:41:52 AM

Title: The G3SS w cr motor.
Post by: m in sc on August 07, 2019, 11:41:52 AM
lost the build thread ont he old site, but this started as a stock scruffy 71 G3ss and after getting tired of the trans problems and lack of power,  i stuffed a CR85 motor in it, then it got out of control.  :metal:

heres the current updates, dropped down to an 11mm master, redid the fairing stays, and changed out the led headlight. This is all powered by a 20v drill battery as theres -no- charging options for a cr85 motor.

this will do about 80 mph with me on it, thats a kreidler fairing from treatland.

(http://www.2strokeworld.net/wp-content/uploads/G3SS/HEADLIGHT-FAIRING-BRAKE-2019/G3-FAIRING-BRAKE-2019_3.jpg)

(http://www.2strokeworld.net/wp-content/uploads/G3SS/HEADLIGHT-FAIRING-BRAKE-2019/G3-FAIRING-BRAKE-2019_2.jpg)
new rods made, threaded the bar at the fairing end, welded m5 nut at top to hold in place at fairing, threads through screen shield.

(http://www.2strokeworld.net/wp-content/uploads/G3SS/HEADLIGHT-FAIRING-BRAKE-2019/G3-FAIRING-BRAKE-2019_8.jpg)
gauge plate. hole to left if for headlight mode button, on way.
(http://www.2strokeworld.net/wp-content/uploads/G3SS/HEADLIGHT-FAIRING-BRAKE-2019/G3-FAIRING-BRAKE-2019_1.jpg)

(http://www.2strokeworld.net/wp-content/uploads/G3SS/HEADLIGHT-FAIRING-BRAKE-2019/G3-FAIRING-BRAKE-2019_4.jpg)

(http://www.2strokeworld.net/wp-content/uploads/G3SS/HEADLIGHT-FAIRING-BRAKE-2019/G3-FAIRING-BRAKE-2019_5.jpg)
brake master off a kx 85, with hydraulic banjo brake switch
(http://www.2strokeworld.net/wp-content/uploads/G3SS/HEADLIGHT-FAIRING-BRAKE-2019/G3-FAIRING-BRAKE-2019_6.jpg)
remade silncer tip out of stainless, also welded in nuts to can to use bolts instead of rivets.
(http://www.2strokeworld.net/wp-content/uploads/G3SS/HEADLIGHT-FAIRING-BRAKE-2019/G3-FAIRING-BRAKE-2019_9.jpg)

(http://www.2strokeworld.net/wp-content/uploads/G3SS/HEADLIGHT-FAIRING-BRAKE-2019/G3-FAIRING-BRAKE-2019_10.jpg)
cyglo mtn bike light for 'just in case' situations wher emore light is needed. this thing is stupid bright, ive actually ridden the gap, at night, with just this headlight.
(http://www.2strokeworld.net/wp-content/uploads/G3SS/HEADLIGHT-FAIRING-BRAKE-2019/G3-FAIRING-BRAKE-2019_11.jpg)

prior to last round of mods, 2 weeks ago.

(http://www.2strokeworld.net/wp-content/uploads/G3SS/HEADLIGHT-FAIRING-BRAKE-2019/g3ss-somoto-7-19.jpg)
Title: Re: The G3SS w cr motor.
Post by: Gill on August 07, 2019, 12:01:38 PM
Whoa! Pocket rocket!
Title: Re: The G3SS w cr motor.
Post by: motodreams on August 07, 2019, 01:07:54 PM
That's dope.   What's power like on the street?  I want something like that for bumming around.
Title: Re: The G3SS w cr motor.
Post by: m in sc on August 07, 2019, 01:14:16 PM
its actually really good, took a while to get the gearing right. its geard tall enough to hit 80, but not be a pia to get off a light.  Initially, it would power wheelie in 3rd (pre fairing with renthals) but top out at 60. then, i went completely the other way and would do almost 90 but had to push off from a light. its much more rideable than one might think, better than i expected. its quick, thats for sure. Motor is rebuilt but stock aside from the v force reeds.  i dynoed it a few years ago, hit 19.9 at the rear wheel on a 95 degree day.

My grom broke a rod back in may, and its going to get a similar engine swap, but a suzuki LT250R motor. should be even more streetable.

Title: Re: The G3SS w cr motor.
Post by: PIOUGHD_RD350 on August 07, 2019, 05:39:34 PM
Mmmmm, yummy!!!!
I really like this.
Title: Re: The G3SS w cr motor.
Post by: Czakky on August 07, 2019, 06:17:45 PM
Not sure how I missed this on the old thread. Bravo head honcho!
Title: Re: The G3SS w cr motor.
Post by: SoCal250 on August 08, 2019, 01:30:38 AM
That thing is so cool! :metal:  Love the 70s color theme on it. How did you find a fairing that matched? Did Kreidler just happen to have nearly the same colors/graphics?
Title: Re: The G3SS w cr motor.
Post by: m in sc on August 08, 2019, 08:34:55 AM
Quote from: SoCal250 on August 08, 2019, 01:30:38 AM
That thing is so cool! :metal:  Love the 70s color theme on it. How did you find a fairing that matched? Did Kreidler just happen to have nearly the same colors/graphics?

Thanks guys.   :toot:


i wish it came that way.. wasn't even close, (which is fine) i had to section the sides and add about 4" (under the clipons its longer). after i cut the sides out a bit, i used that fiberglass to lengthen it, theres a support plate glassed in behind the skin as well. so, the sides were brought way up, long narrow part was lengthened , bottom was widened. the core of it was the right size, thats why i went that way.

My goal was to make it match the original paint, so i had the local body shop match the yellow color to the side-cover, and i sprayed it. then i did an intentionally rough paint job, including the sloppy stripe, to look like ' a guy that basically lived in his van and raced it, around 1975' look. it was harder than actually stripping everything and doing a pretty paint job. well, more time consuming.

as i received it: (it was brand new)

(http://www.2strokeworld.net/wp-content/uploads/G3SS/fairng-related/71g3-misc_24.jpg)


test fitment pre cut:

(http://www.2strokeworld.net/wp-content/uploads/G3SS/fairng-related/IMG_20140415_225904_128.jpg)

sprayed and cut (i painted the base yellow as well)

(http://www.2strokeworld.net/wp-content/uploads/G3SS/fairng-related/fairingpaint_1.jpg)

intentionally crappily laying out the stripes  :haw: 

(http://www.2strokeworld.net/wp-content/uploads/G3SS/fairng-related/DSCN0478.jpg)


Title: Re: The G3SS w cr motor.
Post by: SoCal250 on August 10, 2019, 09:15:55 PM
Quote from: m in sc on August 08, 2019, 08:34:55 AM
i wish it came that way.. wasn't even close, (which is fine) i had to section the sides and add about 4" (under the clipons its longer). after i cut the sides out a bit, i used that fiberglass to lengthen it, theres a support plate glassed in behind the skin as well. so, the sides were brought way up, long narrow part was lengthened , bottom was widened. the core of it was the right size, thats why i went that way.

My goal was to make it match the original paint, so i had the local body shop match the yellow color to the side-cover, and i sprayed it. then i did an intentionally rough paint job, including the sloppy stripe, to look like ' a guy that basically lived in his van and raced it, around 1975' look. it was harder than actually stripping everything and doing a pretty paint job. well, more time consuming.

Bravo! :clap: You had me fooled. That looks like an old 2nd hand fairing that just happens to match. You did an awesome job making it appear to be authentic 1970's!   :affirmation:  It looks really good on there with the mods and paint match.

You need to make a "Haase Hall of Fame Builds" post on here with the best photo of each of your memorable builds. Like the one with the simulated wood paneling, and the lightweight, the Ninja, the RD LC-conversion, and so on.
Title: Re: The G3SS w cr motor.
Post by: retaRD on August 11, 2019, 07:41:07 PM
I was hoping this was a for sale thread.

:haw: 
Title: Re: The G3SS w cr motor.
Post by: m in sc on August 11, 2019, 11:03:51 PM
noooooo sorry nathan., you can ride it when you come visit your mom.  :devil:
Title: Re: The G3SS w cr motor.
Post by: retaRD on August 12, 2019, 12:09:48 PM
Quote from: m in sc on August 11, 2019, 11:03:51 PM
noooooo sorry nathan., you can ride it when you come visit your mom.  :devil:


It's way more fun to ride it here though.

(https://uploads.tapatalk-cdn.com/20190812/073ea319857c34eb0edfcdd1cd59527a.jpg)
Title: Re: The G3SS w cr motor.
Post by: m in sc on August 12, 2019, 12:37:39 PM
ive never seen that pic, sweet.

:clap:

Nathan, anything i bring up there you have free reign to ride anyway. Next year will be the Grom for sure (as long as i get the 250 motor in it in time) and whatever else falls onto the trailer the day before. maybe the LC. Who knows.  :toot: :vroom::nathan:
Title: Re: The G3SS w cr motor.
Post by: SUPERTUNE on August 13, 2019, 10:19:01 AM
Such a killer custom build Mark!
Is that a Honda stocker on the screen?
C
Title: Re: The G3SS w cr motor.
Post by: m in sc on August 13, 2019, 10:32:31 AM
thanks chuck. yup, it is. well was. it started lifting to o peeled it off, but im going to get a wing decal for it somewhere.
Title: Re: The G3SS w cr motor.
Post by: retaRD on August 13, 2019, 11:07:46 AM
Quote from: m in sc on August 12, 2019, 12:37:39 PM

Nathan, anything i bring up there you have free reign to ride anyway. Next year will be the Grom for sure (as long as i get the 250 motor in it in time) and whatever else falls onto the trailer the day before. maybe the LC. Who knows.  :toot: :vroom: :nathan:

Deal.  You have free reign to my DVD collection.

(https://uploads.tapatalk-cdn.com/20190813/a39ef507e1c344b36e7e7e694cdbc31e.jpg)


Title: Re: The G3SS w cr motor.
Post by: m in sc on August 13, 2019, 11:35:14 AM
 :swoon: :nana: :toot:


:dawg:
Title: Re: The G3SS w cr motor.
Post by: JA-Moo on October 30, 2019, 12:05:53 PM
Hey Mark, I bought a couple of the same headlights for my project bike. How is that working for you? :umm:
Title: Re: The G3SS w cr motor.
Post by: m in sc on October 30, 2019, 12:19:52 PM
John,

really good actually. david has had a pair on his XSR for over  a year and they are solid. they tend to 'spot light' a bit, 2 would be great on a bike, i just don't have room for 2.  But i have ridden the G3 at night at its very good.  :cheerleader:
Title: Re: The G3SS w cr motor.
Post by: JA-Moo on October 30, 2019, 11:23:14 PM
Awesome! And the spotlight was exactly why I did 2, and high beam also.  :righteous:
Title: Re: The G3SS w cr motor.
Post by: teazer on November 04, 2019, 11:24:13 AM
Fun little bike.  BTW the fairing is a copy of a Vic Camp Ducati 250 fairing I believe.  I don't recall ever seeing a Kreidler with that shape fairing.

Here's one for GFTP http://www.gftpstore.com/images/1323922311067-1369797543.jpeg

Anyone like to make a Van Veen Kreidler replica/tribute bike?  That could be a fun project. 
Title: Re: The G3SS w cr motor.
Post by: m in sc on November 04, 2019, 11:33:53 AM
its this fairing, heavily modified. When i originally bought it, it was listed as a kreidler fairing.

https://www.treatland.tv/fiberglass-full-race-fairing-racer-1-p/fiberglass-fairing-1.htm

beats me, but i had to modify it a LOT to make it work. Good info though  :toot: :patriot:. theres 3 variants of it on their site so who knows what the mold was popped off of.
Title: Re: The G3SS w cr motor.
Post by: teazer on November 04, 2019, 12:31:16 PM
I think that's why it was so large for a small bike.  It was designed for a Ducati single.  They are not small but they are a lot larger than a tiny Kreidler.

What I don't know is who designed the fairing and if Vic Camp and his race school were the first to use it.  Back in teh day there were companies like Mitchenall Brothers who made their own brand (AVON) as well as making fiberglass parts for others.  I think Bill Roberts was another.

It's possible that the original design came from Italy, but we'd need to ask someone on a Ducati Singles forum I guess.
Title: Re: The G3SS w cr motor.
Post by: m in sc on November 04, 2019, 03:33:31 PM
i actually had to widen it at the back and lengthen the nose out to clear everything. it was pretty small when i got it, considering i had to make it bigger to fit a G3, i was surprised. Im familiar with the 250-350 ducati singles, it may have fit but the fairing i have was pretty darn small out of the box.  beats me, all i know, i like it, it def works on the bike.  :haw:
Title: Re: The G3SS w cr motor.
Post by: teazer on November 04, 2019, 04:05:36 PM
And that's all that matters.  My CB77 used to wear a Rickman top half fairing and another one wore a TD1C fairing (slightly modified) and we have a pair of CB160 race bikes trying to hide behind RS125 Honda fairings. 

That's how things work.  We find parts that are almost what we are looking for and then we adapt them to make them work. 

I can't find a seat to modify to fit a Ducati ST3 but I know it's out there somewhere waiting to be cut up and modified.

On the RD350 drag racer, the tank cover was pulled off a slimmed down RD400 tank and side covers.

Almost anything is possible, and in the end, the only thing that matters is that the builder/owner likes it.

There are so many little bikes that could be turned into fun little screamers.  Thanks for sharing yours.
Title: Re: The G3SS w cr motor.
Post by: pdxjim on November 04, 2019, 05:12:32 PM
I you have any questions about vintage race bodywork, just call up at Bret at GFTP and ask him.

He is super friendly and just an all-around nice guy.
Title: Re: The G3SS w cr motor.
Post by: teazer on November 04, 2019, 06:35:17 PM
+1 to GFTP


I already have too many projects, but this thread has me thinking about a small 2 stroke project.  All I really need to start is title and frame and that can be modified to wrap around almost any fun two stroke single motor.  Just think.  Only one cylinder to port, only one head to machine, one crank throw to rebuild.

Compared to twins and triples, that's a very enticing idea.  Pity there's only about two bends in the road between here and the Canadian border, but for people with curves in the road, what better way to build something really fun.
Title: Re: The G3SS w cr motor.
Post by: m in sc on November 04, 2019, 10:07:08 PM
i love the small stuff for sure. that g3 is def a keeper.

I actually have bought some GFTP, great stuff and resource.

. keep in mind, when i did the G3, the intent was to look like it was period built and the rider lived out  of his van.  :dawg:

Title: Re: The G3SS w cr motor.
Post by: RDryan on November 06, 2019, 06:43:19 AM
Wow what an original creation. Very cool 8) :nana: :clap:

Is there a story about how you got that CR85 motor? Did it just fall into your lap and be like the perfect dimensions to fit into the frame? I guess I wonder if you could've put a 125 motor in it or maybe that would be just too big? :taz:

I think I recall seeing someone document a build on Youtube where he puts a CR125 motor in a Aprilia RS50.
Title: Re: The G3SS w cr motor.
Post by: m in sc on November 06, 2019, 07:12:46 AM
thanks. No i sought it out and bought it, and they aren't cheap complete, which kinda surprised me.  :eek: I looked for the most common one to get parts for, that was it. they use them in some kart racing from what i read, and new parts are everywhere.  I was thinking of going to go for a ktm 105 but wanted to keep it under 100cc.

Title: Re: The G3SS w cr motor.
Post by: RDryan on November 06, 2019, 06:05:44 PM
That's interesting about the cart racing, I know the 125's were a popular powerplant but I really don't know much about the sport other than they look fun.  :righteous:

You just made me think back on when I was 16, had a 87' KX80 big wheel with the 105 kit. Bought it off a friend who made love with a phone pole on it. I remember it needed the clutch case replaced, brake pedal and a few other things. I didn't know much about bikes then still don't but it was a fun bike to work on and ride. I was fearless then. Always standing it up in 3rd gear.
Title: Re: The G3SS w cr motor.
Post by: RMRD on November 15, 2019, 10:41:37 AM
Hi there Mark,
When you swapped in the CR85 motor, what were the biggest hurdles? 
I'm guessing some motor mount reconfiguration happened... was there anything you had to fabricate on a mill or lathe (2 things I don't have)?  Same chain size?  Did you have to come up with any spacers to get F and R sprockets aligned?
I replaced crank bearings and did 1st overbore on my G3 last summer.  When I was in there I saw some veeeery scary shit going on in the trans.  I wasn't prepared to deal with it at the time so I closed it up knowing I'd be addressing it down the road.
The notion of making that bike more capable has been on my mind for many years.  I would prefer a swap to rebuilding trans and modding existing motor.
Thanks for any input!   ...and, >Thanks for the site<
-Ross

See you at the Gap !!
Title: Re: The G3SS w cr motor.
Post by: m in sc on November 15, 2019, 11:39:48 AM
Hi,

to be honest, on that particular project i really didn't do any machine work to make it work aside from cutoff wheel and grinding and welding. I did some because it was easier, (bushings, etc) but you dont need to to make it work. keep in mind, the cr85 motor has -no- provision for a charging system so its total loss. you could go 125 and options open up.

chain alignment was the biggest issue, and that was easy. 
Title: The G3SS w cr motor: UPDATE
Post by: m in sc on January 03, 2022, 02:20:50 PM
So, its been dead for over a year due to a failed rod bearing (oddly wasnt raising hell, just went tits up). I mean, the motor has been in there since 2014, so it cerianly had plenty of hours on it.

so, my goal was to get it rebuilt over xmas this year, but that DS7 showed up and chewed up some time. However, Saturday, i finally dragged it home from the warehouse at work and got into it.

New crank, new piston, seals, etc. welded up a cracked engine bolt boss ont he front of the motor (has been like that since day 1 actually). and finessed a bunch of stuff. moved the CDI box & mount to allow for air filter clearance, cleaned up some welds, added a 'bill's pipe' chamber, so had to reangle headpipe some, and cleaned up some pipe mounting, etc. It should eb ready for spring.

I also plan on changing the front caliper to a 2 piston nissin (grom unit i have laying around) and dumping the single piston RX50 one. Maybe i'll figure out a lighting or charge coil for it as its still total loss, which is 'ok' but id prefer a charging system. however, it gets 7 hours on a full charge so not a priority.

On way home. already had pulled cyl to confirm crank was culprit:

(https://www.2strokeworld.net/wp-content/uploads/G3SS/motor-rebuild-etc-22/g3-cr-moto-rebuild_22_01-2-rotated-e1641232167686.jpg)

home ready to tear into it:

(https://www.2strokeworld.net/wp-content/uploads/G3SS/motor-rebuild-etc-22/g3-cr-moto-rebuild_22_02-3-rotated-e1641232183491.jpg)

stock pipe vs 'new' pipe. should be better at midrange useable power. at least thats what 'they' say. judging by the shape id have to think so.

(https://www.2strokeworld.net/wp-content/uploads/G3SS/motor-rebuild-etc-22/g3-cr-moto-rebuild_22_06-3.jpg)

not a cosmetic rebuild, but it came all the way down.

(https://www.2strokeworld.net/wp-content/uploads/G3SS/motor-rebuild-etc-22/g3-cr-moto-rebuild_22_08-3-rotated-e1641232391879.jpg)

all new, all 'stock' stuff, even the 47mm bore. only difference is a powerjet koso 'pwk' and v force reeds and of course, the pipe. 

(https://www.2strokeworld.net/wp-content/uploads/G3SS/motor-rebuild-etc-22/g3-cr-moto-rebuild_22_12-1-rotated-e1641232492660.jpg)

not pretty but functional . welded up and added material added to boss on front motor mounts.  when i first built this i couldn't tig aluminum so this was a long time coming. I barely can now but its good enough.  :dawg:

(https://www.2strokeworld.net/wp-content/uploads/G3SS/motor-rebuild-etc-22/g3-cr-moto-rebuild_22_09-rotated-e1641232408919.jpg)

as of last night, all bolted together. I have a new aftermarket radiator coming with new red hoses. the old on is fine but just ratty looking.

(https://www.2strokeworld.net/wp-content/uploads/G3SS/motor-rebuild-etc-22/g3-cr-moto-rebuild_22_14-1-rotated-e1641232732534.jpg)



Title: Re: The G3SS w cr motor.
Post by: m in sc on January 06, 2022, 10:46:05 AM
HPI says they can build me a cdi for the CR motor w a lighting coil, one currently doesn't exist. this makes me happier than it should.  :toot:

Title: Re: The G3SS w cr motor.
Post by: Djg8493 on January 06, 2022, 01:23:03 PM
Man I love this thing!  Awesome work, makes me want to finally build up my GT80 with some street tires, suspension and a YZ top end...
Title: Re: The G3SS w cr motor.
Post by: m in sc on January 07, 2022, 10:06:06 PM
thanks!

steering damper updated, old one was long and was never fond of the mounting. fabbed and welded a new bracket onto the frame, this unit is much better and more precise. last pic is old unit just dragging across new pipe. :science:

Title: Re: The G3SS w cr motor.
Post by: 50gary on January 09, 2022, 08:24:19 PM
Your G3 swap was my inspiration to buy a lonely looking Yamaha MX100 from FB marketplace.  I meet the guy, look at the thing the motor looked a bit odd to me, ah well what do I know.  Take it home start looking closer and find it's a MX100 chassis with a DT175 motor.  That'll work too.  It's so cute tiny bike.
  Cheers,  50gary
Title: Re: The G3SS w cr motor.
Post by: m in sc on January 10, 2022, 10:52:05 AM
lol, cool gary. i know someone who has a 175 top on a 125 bottom and he races it, its a neat setup.

Slight update, i miscalculated and faceplanted on Saturdays test ride, the front wheel hit the pipe in a full left hander and stopped it dead and i lowsided at about 20mph in the neighborhood on the way to the gas station. Luckily didn't hurt anything including me. (and the fairing was off for the test.. whew.). it did hit the radiator but not enough to spring a leak.. and i had a new one coming anyway so no loss there. I gassed it up, rode it back home and re-clocked the head-pipe, rewelded and now have over 1" clearance at full compression and lock. I then took it back out and re-testrode, all good and motor breaking in nicely.

I'm a bit embarrassed i missed this in setup.  Luckily i had all my gear on, or my left hand would be chewed up pretty good.    :cheerleader:

Onward and forward!  :celebrate:
Title: Re: The G3SS w cr motor.
Post by: SoCal250 on January 10, 2022, 04:00:54 PM
Ouch. Glad you're OK and no real damage to the bike
Title: Re: The G3SS w cr motor.
Post by: Kawtriplefreak on January 10, 2022, 04:56:05 PM
Glad you and the bike are OK.
Title: Re: The G3SS w cr motor.
Post by: m in sc on January 10, 2022, 05:25:57 PM
thanks guys. I usually dont miss stuff like this, lesson learned, and i def got lucky. also why i do local test rides and always wear gear.

spent yesterday rewiring a friends r5/rd hybrid, didnt really feel like getting on a bike for that reason, and rain was forecast. But i embarrassed some young fucker in an older 323 (i think) BMW in the galaxie w 2 passengers, so there was that.  :dawg:   :lol:   
Title: Re: The G3SS w cr motor.
Post by: Evans Ward on January 10, 2022, 06:16:49 PM
^ Love it!  :olaf: Glad you schooled that mo fo in the beemer cage!  :dawg: :righteous: :nana:
Title: Re: The G3SS w cr motor.
Post by: m in sc on January 12, 2022, 04:11:20 PM
so heres where the tire hit the pipe:

(https://www.2strokeworld.net/wp-content/uploads/G3SS/motor-rebuild-etc-22/exhaust/g3ss-pipe-reconfig-22_1-rotated.jpg)

after modding the pipe up top as mentioned, the rear stinger just would NOT cooperate angle wise, so i just cut it out of the chamber and made a new one. also cut the end off the silencer and made a new slip collar our of stainless at a slight angle to get the positioning right.

the hole in the pate in one of th epics is where i mounted a machine isolator mount to support the back of the pipe, thats the old 6v battery box.

tacked up:

(https://www.2strokeworld.net/wp-content/uploads/G3SS/motor-rebuild-etc-22/exhaust/g3ss-pipe-reconfig-22_2-rotated-e1642021406466.jpg)

all welded up and sealed:

(https://www.2strokeworld.net/wp-content/uploads/G3SS/motor-rebuild-etc-22/exhaust/g3ss-pipe-reconfig-22_4.jpg)

there's about 1/4" clearance between the silencer tip and the shock spring. genuine oh!-leans

(https://www.2strokeworld.net/wp-content/uploads/G3SS/motor-rebuild-etc-22/exhaust/g3ss-pipe-reconfig-22_5-rotated-e1642021332868.jpg)

w side-cover mounted.

(https://www.2strokeworld.net/wp-content/uploads/G3SS/motor-rebuild-etc-22/exhaust/g3ss-pipe-reconfig-22_3-rotated-e1642021444831.jpg)
Title: Re: The G3SS w cr motor.
Post by: m in sc on January 14, 2022, 10:58:32 AM
no pics, but got the new radiator and cooling hoses mounted last night. However... more exciting is the fact HPI greenlit the cdi with a lighting coil. Pretty sure this will be the 1st cr85 motor with a charge circuit . wasn't bad, AT ALL, ordered directly from them, was $256 or so shipped for the custom unit. looking forward to this, better cdi curve and can run a battery, which means i can run an electronic tach/speedo if i want.  :toot:
Title: Re: The G3SS w cr motor.
Post by: Kawtriplefreak on January 14, 2022, 11:54:08 PM
 :righteous:
Title: Re: The G3SS w cr motor.
Post by: m in sc on January 20, 2022, 10:28:40 AM
after some confusion (language barrier issues) the cdi w lighting coil is finally on way from HPI. I hope they got it right.  :dawg:

:toot:
Title: HPI cdi with lighting coil for CR motor and other electrical doodads
Post by: m in sc on February 03, 2022, 03:34:37 PM
So, the hpi finally showed up. Now, 1st off it was really cheap overall, and as far as i know, the only one they have done with alighting coil for this bike. so, they modified a regular 210 unit back plate... and -almost- got it.  :dawg: luckily i have a lathe so all good there. also, the 2 mounting bolt holes are NOT (stock) same distance, and when they did the hpi plate, they missed one by about 3mm. somebody forgot to offset a caliper for radius.

so, i made an alignment plug and used the stock cdi backing plate as a drill guide. did 2 sets of holes incase i wanted to change clocking.

also, the thru hole was too small to go down over the flange @ the crank, so bored out to 38mm to center on the case. 

(https://www.2strokeworld.net/wp-content/uploads/G3SS/motor-rebuild-etc-22/cdi-and-electrics/g3-cr-cdi-electrical-22_6.jpg)

(https://www.2strokeworld.net/wp-content/uploads/G3SS/motor-rebuild-etc-22/cdi-and-electrics/g3-cr-cdi-electrical-22_7-rotated.jpg)

(https://www.2strokeworld.net/wp-content/uploads/G3SS/motor-rebuild-etc-22/cdi-and-electrics/g3-cr-cdi-electrical-22_8-rotated.jpg)

drilled.

(https://www.2strokeworld.net/wp-content/uploads/G3SS/motor-rebuild-etc-22/cdi-and-electrics/g3-cr-cdi-electrical-22_5-rotated.jpg)


used winding mount as an ID grip and then bored open the hole on the plate:

(https://www.2strokeworld.net/wp-content/uploads/G3SS/motor-rebuild-etc-22/cdi-and-electrics/g3-cr-cdi-electrical-22_22.jpg)


then, onto the stator. floated the ground. what you do is remove the grounded end of stator winding from ground, take off the eyelet, and tie it to a second output wire.  fishing the wire through the HPI wrap was not too bad using a section of stainless tig wire. (do this 1st)

(https://www.2strokeworld.net/wp-content/uploads/G3SS/motor-rebuild-etc-22/cdi-and-electrics/g3-cr-cdi-electrical-22_14.jpg)

(https://www.2strokeworld.net/wp-content/uploads/G3SS/motor-rebuild-etc-22/cdi-and-electrics/g3-cr-cdi-electrical-22_17.jpg)

(https://www.2strokeworld.net/wp-content/uploads/G3SS/motor-rebuild-etc-22/cdi-and-electrics/g3-cr-cdi-electrical-22_18.jpg)

(https://www.2strokeworld.net/wp-content/uploads/G3SS/motor-rebuild-etc-22/cdi-and-electrics/g3-cr-cdi-electrical-22_19.jpg)

mount back on plate and done. 

(https://www.2strokeworld.net/wp-content/uploads/G3SS/motor-rebuild-etc-22/cdi-and-electrics/g3-cr-cdi-electrical-22_21.jpg)


make sure you know what the stock max timing is.... because its usually NOT published on cdi bikes.

(https://www.2strokeworld.net/wp-content/uploads/G3SS/motor-rebuild-etc-22/cdi-and-electrics/g3-cr-cdi-electrical-22_13.jpg)

set crank to that position, then set cdi rotor to line up with mark on plate at max adv and zip down.

(https://www.2strokeworld.net/wp-content/uploads/G3SS/motor-rebuild-etc-22/cdi-and-electrics/g3-cr-cdi-electrical-22_23.jpg)

:bacon:

now i nee dto add the rest of the elctrical, which includes a tiny lead acid battery, 0.8 ah, 12v. also a gps sdpeedometer and regulator rectifier. thats next.

tiny battery:

(https://www.2strokeworld.net/wp-content/uploads/G3SS/motor-rebuild-etc-22/cdi-and-electrics/g3-cr-cdi-electrical-22_1-rotated.jpg)

yes, thats a pen on the top for size reference.

(https://www.2strokeworld.net/wp-content/uploads/G3SS/motor-rebuild-etc-22/cdi-and-electrics/g3-cr-cdi-electrical-22_2-rotated.jpg)

hopefully i can get it fired up tonight or tomorrow, see if the timings close.


ebay gps speedometer. this thing will just do 80 mph so should be good.

(https://www.2strokeworld.net/wp-content/uploads/G3SS/motor-rebuild-etc-22/cdi-and-electrics/g3-cr-cdi-electrical-22_10-rotated.jpg)





Title: Re: The G3SS w cr motor.
Post by: SoCal250 on February 03, 2022, 05:44:54 PM
:clap: :thumbs: That's cool

Wish they made one for an aircooled RD125
EDIT:  Just double-checked and it appears they do!  Part # 210K176 (https://www.hpi.be/item.php?item=210K176)
           (I thought I had looked into it and the past and they didn't. Hmm.)
       
Title: Re: The G3SS w cr motor.
Post by: m in sc on February 04, 2022, 11:01:06 AM
its an interesting setup for sure. got it running and charging last night. TBH its better all AC lighting if you can, but i converted to DC and its hitting 14v at a relatively high rpm, but this thing is always revving so its ok. everything is led and the only other load will be a gps speedometer, which hopefully i can install tonight. they also sell a half wave rectifier so headlight can be ac, and also charge battery.   I mean.,for the money, its hard to beat. motor def sounds crisper with it.
Title: Re: The G3SS w cr motor.
Post by: m in sc on February 07, 2022, 07:19:41 AM
a few more shots, and speedo installed. got the battery mounted on the side under the LH cover, under it is the voltage regulator. on the other side of the bike (rh side cover) is the cdi unit and the coil. the HPI seems to charge the battery ok, goes over 13v when revving, and the lights are bright.

gps speedometer also installed, easier to read out front considering how small the bike is. the antenna is on the RH side on a fender stay under the steering damper.

took it back out Saturday after i got all this tied back up and wiring secured, seems to run crisper w the hpi and start easier.


needless to say, most of these pics were all taken w the bodywork off, its all sorted now and wires tied up and secured.

dare i say im 'done' for now.  :vroom:

(https://www.2strokeworld.net/wp-content/uploads/G3SS/motor-rebuild-etc-22/cdi-and-electrics/g3ss-gauge-sorting_2-scaled.jpg)

(https://www.2strokeworld.net/wp-content/uploads/G3SS/motor-rebuild-etc-22/cdi-and-electrics/g3ss-gauge-sorting_1-scaled.jpg)

(https://www.2strokeworld.net/wp-content/uploads/G3SS/motor-rebuild-etc-22/cdi-and-electrics/g3ss-gauge-sorting_5-1.jpg)

(https://www.2strokeworld.net/wp-content/uploads/G3SS/motor-rebuild-etc-22/cdi-and-electrics/g3ss-gauge-sorting_8-1.jpg)

(https://www.2strokeworld.net/wp-content/uploads/G3SS/motor-rebuild-etc-22/cdi-and-electrics/g3ss-gauge-sorting_10.jpg)

(https://www.2strokeworld.net/wp-content/uploads/G3SS/motor-rebuild-etc-22/cdi-and-electrics/g3ss-gauge-sorting_4-1.jpg)


(https://www.2strokeworld.net/wp-content/uploads/G3SS/motor-rebuild-etc-22/cdi-and-electrics/done22_2.jpg)


(https://www.2strokeworld.net/wp-content/uploads/G3SS/motor-rebuild-etc-22/cdi-and-electrics/done22_1.jpg)
Title: Re: The G3SS w cr motor.
Post by: Kawtriplefreak on February 07, 2022, 08:48:16 AM
Looks great  :metal: :metal:
Title: Re: The G3SS w cr motor.
Post by: SoCal250 on February 07, 2022, 11:58:30 AM
Lookin good! :clap: That little bike is awesome
Title: Re: The G3SS w cr motor.
Post by: m in sc on March 07, 2022, 10:45:29 AM
so this thing was giving me fucking fits getting it dialed in. The HPI is doing its jop for sure, but i had an intermittent issue w the charging coil where i floated the ground, so had to resolder that end secure it differently. Then tuning was off a bit as well i guess, not related but still. Finally got the tune where it needs to be, which took a good chunk of Saturday and lots of annoyed neighbors. well, sort of.

I also had to use a slightly larger battery as the tiny one was discharging a bit much at idle, so went to a TTR50 unit, which -just- fit in the sidecover and seems to have cured it.

(https://www.2strokeworld.net/wp-content/uploads/G3SS/motor-rebuild-etc-22/cdi-and-electrics/G3_charging-fix_2.jpg)

also reclocked and bent the kicker  a bit more to make more reasonable to start, was super awkward.

(https://www.2strokeworld.net/wp-content/uploads/G3SS/motor-rebuild-etc-22/cdi-and-electrics/G3_charging-fix_1.jpg)


got it up to 75 mph on a short test run Saturday but too much traffic to really rail on it. But, its 95-98% id say.  :cheerleader:
Title: Re: The G3SS w cr motor.
Post by: Evans Ward on March 07, 2022, 01:08:10 PM
Bad Ass little screamer!  :thumbs: Love the 71 paint scheme and graphics for Kawasaki including this model. I'll bet cops do a double take when you take it out on the streets!  :eek: :olaf:
Title: Re: The G3SS w cr motor.
Post by: m in sc on March 07, 2022, 02:19:29 PM
i try to avoid cops.. lol. Im kinda asking for it on this thing (yes its 100% legal though)

Im pretty sure this one will stay home this year for the gap. That might change.
Title: Re: The G3SS w cr motor.
Post by: Kawtriplefreak on March 07, 2022, 04:49:06 PM
Glad you got it sorted. I love that bike :patriot: :patriot:
Title: Re: The G3SS w cr motor.
Post by: OnlyCrimnson on March 14, 2022, 11:48:19 PM
Super cool bike. I bought a cheapie radiator that looks similar to that one for my RM85 mini and it is surprisingly well made.
Title: Re: The G3SS w cr motor.
Post by: soonerbillz on March 23, 2022, 10:32:07 PM
This is seriously a very nice build.
I love stuff like this.
Title: Re: The G3SS w cr motor.
Post by: m in sc on March 28, 2022, 11:39:44 AM
from last thurs at bike night, my friend Adam taking it out.

:toot:


Title: Re: The G3SS w cr motor.
Post by: Kawtriplefreak on March 28, 2022, 04:49:54 PM
 :righteous: :righteous: