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Messages - RD4140

#1
Man, I haven't posted in like a year. I have made zero progress on the bike, but good news is i recently bought my first house / garage and after six solid months of remodelling I am finally getting around to working on this project. Couldn't be more stoked the weather sucks now and have some time to get this done.



#2
Hey, I have two RD side covers (well, ones the oil tank). They're both different colors and I want to prep and paint them.

They're in good condition, don't need to bog them or anything. Just remove paint and/or prime and repaint.

Anyone got any tips for the best way to do this? I've never dealt with plastic before.

Thanks.
#3
Bikes coming along nicely, to do list is getting chipped away at ..

gas tank - weld in new gas cap, get petcock, prime/paint, get rubber mounts
brakes - fabricate caliper brackets and cylinder mount
body - fabricate rear fender then electrics/battery tray
electrics - head lamp and brake lights
new handlebars

then stage 2 i guess is wire in turn signals, get a tach/speedo, button up the left overs.

complete and then never start another project again.
#4
Haus of Projects / Re: 74 RD350 build
November 14, 2023, 03:58:38 AM
I'm so jealous when I see everyones garages.
#5
Dear Diary,

I finally got the chance to roll the bike outside and give it a kick.
This is pretty much straight out the box and bolted together. Junkyard bike/motor + vape ignition + DG's. From here I guess I'm going to concentrate on learning to tune it up. You can probably hear it don't sound spot on, so I welcome any input. I think I'm running 150 main and 30 pilot in the carbs, but I'll have to check I actually made that change.

I'm pretty happy that this old junkyard dog has a second chance at life.


I have a laundry list of parts I need but really need a petcock if anyones got a spare laying around they want to flip. I need to get some exhaust gaskets too it seems, not sure how I missed that.
#6
Haus of Projects / Re: 1971 R5 350 Scrambler
July 20, 2023, 06:07:01 PM
I actually put (Triumph) scrambler shocks on my R5, and it raised it up so much that the puny little kick stand now lets the bike lean over like an old chopper. It's weird and I like it.
#7
Glad I did the registration at the start of my project and not at the end.
#8
Turning Wrenches / Re: R5 Vape install
June 06, 2023, 10:34:43 PM
Hey hey, I actually had a question about the vape install too, so might jump in and hijack the thread for a sec.

So I've installed mine, it sparks and I think it will work just fine. However, and I know M in SC has mentioned kill switch installs before, but where exactly in the system would you wire in a killswitch if you were keeping the relay? I just need a way to instantly cut the spark while commissioning my system. Seems like any talk about a switch involves not using the relay

#9
Has anyone else with an R5 had any issues with gasket profile on the clutch cover?
Mine has a section where it goes outward, leaving only a very small section to sandwich ..

I had a slight weep from this area, and suspect it might have extruded out when torqued down.

Are some gasket brands better than others? This is from NE Brand.
Also, has anyone got away with using Loctite 515 or 587 on this cover (or any liquid gasket maker)? I used them alot in industrial applications and never have a problem but not sure if it will work for this application. 
#10
Tossing up whether to put this in this thread, or in my project thread but I thought I'd park it here as it might help some poor schmuck in the future ....

Whats the go with different dimensioned / style jets? Are these for different series carbs or something? I definitely ordered them for an R5 but I assume there's more than one iteration of the mikuni carbs floating around?

See attachment.



#11
Thanks! I'll start with 150/30 and see how it goes.
#12
Hi hi, bringing back this thread as it's relevant to my current quest. Chasing info on how I should set my carbs up ...

1970 R5 (Engine seems stock)
DG Exhaust
Y-boot w/ K&N Filter
Pre-mix

I'm guessing from the info in this thread a good starting point is -
~150-160 Main
~40-50 Pilot
Clip around middle position ?

Happy to experiment, just looking for a good start.
#13
Quote from: SoCal250 on May 01, 2023, 09:22:34 PM
Uh oh, an oil question! :ninja:
I can guarantee that you're going to get as many different oil suggestions as there are replies. Here are MY preferences:
2T oil: Motul 710. All my bikes are injected, but this oil is for both injected and pre-mix applications.
Transmission: BelRay Gearsaver 80w
Both are available at most bike shops, including Cycle Gear.

Yeah, I read that whole ass oil thread and came out even less sure of what to use.
I like your suggestions, I've been running Motul in all my bikes and never had a problem so I'll stick with that.

Thanks.
#14
Hi - I have questions: :stupid-1:

Can anyone recommend an easy to find 2-stroke oil (will be running pre-mix), and also a gear oil? Located west coast USA so no fancy english stuff. I see most people say 10W40 for the g/b but is there anything particularly recommendable?
Also anyone want to guess what size jets / carb settings I'll need for an 1970 R5 with DG pipes and Y-boot with K&N Filter, running pre-mix??
With the vape ignition system installed and sparking nicely, I'm getting pretty close to baby's first kick over.

Still chasing down a few extra PSI compression but I'm still suspecting it's my dumb tester, so I'm going to forge ahead while saving for a better one.

Thanks  :cool:
#15
General Chatter / Re: Meanwhile, in Portland Oregon.
April 17, 2023, 09:46:32 PM
I can see my Forester parked up at 1:36 haha. Didn't ride this year, had family visiting so just took them along for the spectacle. They're not even bike people but found it thoroughly entertaining.

I explained to them that if there was a venn diagram that had overlapping circles of suburban ADV dads, hood rat stunt riders, dirt bikers, vintage enthusiasts, harley rider bros, etc, the Alley Sweeper is the little point in the middle where they all meet.