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The 2-Stroke Garage => Turning Wrenches => Topic started by: m in sc on January 24, 2024, 08:47:35 AM

Title: FPP small can repair, upgrade on mounting
Post by: m in sc on January 24, 2024, 08:47:35 AM
did this yesterday and the day before. for anyone familiar with FPP's, great pipes, but the early ones like to launch the spun aluminum silencers. the aluminum is very soft and the clamp method really just doesnt cut it.

these came up to buy, and i grabbed them. I figured worst case, would put on some tyga silencers but decided to try to save the cans. I'm by NO MEANS a great aluminum welder, and the 2 different grades of aluminum were.. tricky-- to get together especially since the cans were dirty metal.

the sleeve i made is actually a hydraulic filter body (we sell these at work). these are old leftovers from the old cnc machine from work that are sort of everywhere around there

the ID is 1.125", and the narrow part is 25.5mm. I modified them to make stronger ends for the cans, and to thread in some bolts to use for the springs (for a KTM). they are really strong, waiting on the other 2 but it basically doubled the engagement on the stinger. I also shortened the body of the filter by about 52mm.

you cna see one of the can ends was pretty mangled when i got it, i heated it up and straightened it out w a torch and mandrel (socket) before making the new sleeves.

the bolts do NOT act as set screws, but could.
now i need to get the pipes cleaned up and these are bound for the 72 R5.  :toot:



Title: Re: FPP small can repair, upgrade on mounting
Post by: 85RZwade on January 24, 2024, 09:33:07 AM
That'll do nicely
Title: Re: FPP small can repair, upgrade on mounting
Post by: Kawtriplefreak on January 24, 2024, 10:42:52 AM
Excellent  :patriot:  :patriot:
Title: Re: FPP small can repair, upgrade on mounting
Post by: SoCal250 on January 24, 2024, 11:37:11 AM
:thumbs: doesn't look like that's going anywhere now
Title: Re: FPP small can repair, upgrade on mounting
Post by: svgarage on January 24, 2024, 11:58:50 AM
Nifty! Nice work! Are FPP pipes worth saving? I have a newer set for my RD400. Pipe tore open around the mount and needs welding.
Title: Re: FPP small can repair, upgrade on mounting
Post by: m in sc on January 24, 2024, 12:35:33 PM
IMHO, yes hey are very close in performance on a stock-ish motor to tapered head pipe specII's

Title: Re: FPP small can repair, upgrade on mounting
Post by: Hawaii-Mike on January 24, 2024, 03:22:53 PM
Nice work!
Title: Re: FPP small can repair, upgrade on mounting
Post by: 2steve on January 24, 2024, 05:10:16 PM
Uh oh...
These have survived on two different RDs for the last 40 years or so.
However, I might have to get creative.
Title: Re: FPP small can repair, upgrade on mounting
Post by: m in sc on January 24, 2024, 05:15:30 PM
ive launched them, and also ride my bikes almost every day. (well not this time of year). i mean, FPP changed the design themselves... there was a reason.
Title: Re: FPP small can repair, upgrade on mounting
Post by: STLMike on January 24, 2024, 10:59:21 PM
Cool project. Be sure to post the final product. I love seeing things come back to life.
Title: Re: FPP small can repair, upgrade on mounting
Post by: Dvsrd on January 25, 2024, 05:44:43 AM
Quote from: m in sc on January 24, 2024, 12:35:33 PMIMHO, yes hey are very close in performance on a stock-ish motor to tapered head pipe specII's


Sounds great! You definitely made an improvement to the stock silencer mount (understatement...)
I have some questions though:
Are the stingers as short as the visible part, or do they extend into the chambers?
And, did Spec 2 pipes come with both straight and tapered headers? If so, was that the only difference between them? And how much difference would tapered vs straight headers make?
Title: Re: FPP small can repair, upgrade on mounting
Post by: m in sc on January 25, 2024, 09:13:16 AM
as far as the pipes/stingers, they were about 2~2.25" long total, ID of 23.5mm. they did NOT go into the belly of the pipe. the stinger went into the can a bit over 1" and the can + stinger length (also with an ID of 23.5mm), total, is about 15"~15.25".

yes, specII pipes came with both straight, early, then later tapered head pipes. I've run both, the tapered headpipes def improves midrange transfer, the 'hit' isn't as abrupt. i havent measured them pipe to pipe but otherwise, i think thats the only main difference
Title: Re: FPP small can repair, upgrade on mounting
Post by: rodneya on January 25, 2024, 12:48:34 PM
Did you get the dents out of the silencers?
Title: Re: FPP small can repair, upgrade on mounting
Post by: m in sc on January 25, 2024, 01:03:43 PM
nope not yet.. might not.. but will try. torch and a mandrel and a light hammer
Title: Re: FPP small can repair, upgrade on mounting
Post by: RustyRD on January 25, 2024, 03:15:36 PM
Mark I have two new unmolested FPP silencer canisters if needed. CHEAP.
Title: Re: FPP small can repair, upgrade on mounting
Post by: m in sc on January 25, 2024, 03:48:30 PM
I appreciate it. but i already have these modded up. are they the small bodied ones or the later large bodied ones? if smaller, may be interested.

Title: Re: FPP small can repair, upgrade on mounting
Post by: 2steve on January 25, 2024, 04:32:23 PM
Quote from: m in sc on January 25, 2024, 01:03:43 PMnope not yet.. might not.. but will try. torch and a mandrel and a light hammer

PO of my FPPs dropped his Daytona off the lift and dented the can with the axle/nut.
He took a large socket that fit in there pretty close and hammered it through. Came out satisfactory. There's a little bulge where it wandered a little sideways.
Title: Re: FPP small can repair, upgrade on mounting
Post by: RustyRD on January 25, 2024, 04:41:16 PM
ones I have are large diameter.
Title: Re: FPP small can repair, upgrade on mounting
Post by: m in sc on January 25, 2024, 05:05:22 PM
ah. i appreciate it.
Title: Re: FPP small can repair, upgrade on mounting
Post by: m in sc on January 26, 2024, 10:20:51 AM
have a few sets of these on the way, impossible to find so i reproduced them on the computer. yeah, they are actually supposed to look that janky on the font. lol.

 :devil:

(https://2strokeworld.net/wp-content/uploads/72-r5/fpps-repairs-etc/fpp-stickers-e1706282424320.jpg)


Title: Re: FPP small can repair, upgrade on mounting
Post by: Kawtriplefreak on January 26, 2024, 10:29:45 AM
 :metal:  :metal:
Title: Re: FPP small can repair, upgrade on mounting
Post by: m in sc on January 26, 2024, 10:45:01 AM
pipes are cleaned up and painted as well. a few dings down low where you really cant see them don't bother me so i just left them.

luckily the rust was all surface and really didn't pit the metal.

sand paper 1st (150 git on emery cloth type paper, light), then wire wheel on a drill and then laquer thinner. literally took 45 mins to do both, maybe.

(https://2strokeworld.net/wp-content/uploads/72-r5/fpps-repairs-etc/fpps-cleanup-paint_3-rotated-e1706283338644.jpg)

(https://2strokeworld.net/wp-content/uploads/72-r5/fpps-repairs-etc/fpps-cleanup-paint_1-rotated-e1706283384902.jpg)

cans cleaned up waiting for final cleanup and then clearcoat.

(https://2strokeworld.net/wp-content/uploads/72-r5/fpps-repairs-etc/fpps-cleanup-paint_2-rotated-e1706283467899.jpg)

cold days and rainy days make for productive garage time.   :clint:  :toot:



 
Title: Re: FPP small can repair, upgrade on mounting
Post by: 85RZwade on January 26, 2024, 12:36:33 PM

cold days and rainy days make for productive garage time.  :clint:  :toot:





Oh! I'd better get off my dead ass and get out to the garage, then! Thanks for the reminder, and the FPPs look great  :thumbs:
Title: Re: FPP small can repair, upgrade on mounting
Post by: m in sc on January 26, 2024, 09:20:59 PM
and done. (except the can decals)
Title: Re: FPP small can repair, upgrade on mounting
Post by: Kawtriplefreak on January 26, 2024, 11:13:18 PM
Very nice!
Title: Re: FPP small can repair, upgrade on mounting
Post by: kpke on January 27, 2024, 08:05:38 AM
 :clap: Excellent!
Title: Re: FPP small can repair, upgrade on mounting
Post by: mixedbikes on January 27, 2024, 10:56:06 AM
That is such a well done, nice clean bike !! That may be the next one I do, as I have that bikes twin sitting in my shed (sadly for like the last 10 years or so) I even have a set of FPP pipes hanging in shed, but they look like they were thrown off a cliff, not sure if I can bring them back.
Title: Re: FPP small can repair, upgrade on mounting
Post by: m in sc on January 27, 2024, 11:49:33 AM
I appreciate that.  :gentleman:

from this morning.  raining today but did take it out last night, needed to raise the rev limiter a bit.

Title: Re: FPP small can repair, upgrade on mounting
Post by: RDryan on January 27, 2024, 07:13:13 PM
Looks and sounds good. :thumbs:

Oh yeah is that the bike you considered selling this past August?...I have to say I like the R5 better than the RD's. Just the styling, aesthetics of the meters,tank,cases, gas cap. I wouldn't know the difference in gears or performance. They're all pretty rare where I live which is a bummer for me. I wish I had more like minded folks locally. Then I'd probably have a small fleet of RD's myself. 
Title: Re: FPP small can repair, upgrade on mounting
Post by: m in sc on January 27, 2024, 07:57:13 PM
yup. thats the one.  thanks!

its an rd motor, its had an rd lower end w a 6 speed for the past 15 yrs, and i added the reeded top end last year. also, w the disc front end, its virtually otherwise mechanically identical to an rd350. I agree, they are prettier.. to the point both my actual rd's don't have remotely stock bodywork. But the 2 r5s have stock paint/bodywork. 
Title: Re: FPP small can repair, upgrade on mounting
Post by: RDryan on January 27, 2024, 08:55:50 PM
Just outta curiosity I keep wondering if the r5 was ever used in a Hollywood movie?...I keep thinking of this movie I saw many many years ago it was a sort of biography of Bruce Lee and I swear I thought he was riding one or maybe it was at least a 70's era Yamaha.
Title: Re: FPP small can repair, upgrade on mounting
Post by: DesmoDrew on January 28, 2024, 11:20:39 AM
Quote from: RDryan on January 27, 2024, 08:55:50 PMJust outta curiosity I keep wondering if the r5 was ever used in a Hollywood movie?...

In the opening few minutes of 'On Any Sunday' there is a guy in a suit riding a white and gold DS7.  And in the Amazon series 'Wayne', the main characters head from Boston to Ocala, Fl on what looks like an R5 or DS7.  although it is a bit of a bodge bike as the sidecovers look to be off a different bike.
Title: Re: FPP small can repair, upgrade on mounting
Post by: m in sc on January 28, 2024, 01:19:15 PM
@ drew, thats an RD200 actually in 'wayne' which makes it even more ridiculous.
Title: Re: FPP small can repair, upgrade on mounting
Post by: 2 Smoker on February 01, 2024, 03:30:25 AM
Your pipes sound great, nice fab work. :clint:
Title: Re: FPP small can repair, upgrade on mounting
Post by: m in sc on February 06, 2024, 01:37:29 PM
^ thank you very much!

Decals finally came in, really happy with them. I reproduced these off a picture so they may not be 100% but good enough for me :)

Min order required me to get like 12 sets. lol. but was pretty cheap overall.

(https://2strokeworld.net/wp-content/uploads/72-r5/fpps-repairs-etc/fpps-w-decals_3-rotated-e1707244389306.jpg)

(https://2strokeworld.net/wp-content/uploads/72-r5/fpps-repairs-etc/fpps-w-decals_2.jpg)


(https://2strokeworld.net/wp-content/uploads/72-r5/fpps-repairs-etc/fpps-w-decals_1-rotated-e1707244353339.jpg)

(https://2strokeworld.net/wp-content/uploads/72-r5/fpps-repairs-etc/fpps-w-decals_4-rotated-e1707244304211.jpg)
Title: Re: FPP small can repair, upgrade on mounting
Post by: SoCal250 on February 06, 2024, 02:21:18 PM
Quote from: m in sc on February 06, 2024, 01:37:29 PMDecals finally came in, really happy with them. I reproduced these off a picture so they may not be 100% but good enough for me :)

Min order required me to get like 12 sets. lol. but was pretty cheap overall.
Those look good! Who did you use? I was looking for someone to possibly reproduce a NLA decal.
Title: Re: FPP small can repair, upgrade on mounting
Post by: m in sc on February 06, 2024, 02:26:41 PM
thanks Russ.   :gentleman:

well, i did the linework and sent the vector file & a pdf. It was a place online, stickerapp. 
Title: Re: FPP small can repair, upgrade on mounting
Post by: 85RZwade on February 06, 2024, 04:03:16 PM
Those turned out great!  :thumbs:  :thumbs:  :bacon:
Title: Re: FPP small can repair, upgrade on mounting
Post by: gargantua350 on February 07, 2024, 09:48:45 AM
Damn I should get another R5.  Marc what kind of shocks are those?

thx
Title: Re: FPP small can repair, upgrade on mounting
Post by: m in sc on February 07, 2024, 10:33:37 AM
They are actually 2015? ish take off new yamaha SR400 shocks. I just added the ring below for some color goofing around one night off a set of cheap RFY's i had laying around. I do have a set of progressives but TBH, these work pretty well.
Title: Re: FPP small can repair, upgrade on mounting
Post by: pdxjim on February 07, 2024, 11:21:26 AM
You sure about that phone number?

Factory Pipe Products is, and was located about 100mi north of San Francisco, in Ukiah, CA.

Should be 707 area code. 🤷🏻�♂️
Title: Re: FPP small can repair, upgrade on mounting
Post by: pdxjim on February 07, 2024, 11:24:27 AM
Lol:

https://www.npr.org/2011/12/21/144069758/callin-oates-the-hotline-you-dont-need-but-might-call-anyway
Title: Re: FPP small can repair, upgrade on mounting
Post by: Kawtriplefreak on February 07, 2024, 11:29:16 AM
They turned out great Mark :patriot:  :patriot:
Title: Re: FPP small can repair, upgrade on mounting
Post by: m in sc on February 07, 2024, 11:43:56 AM
Yup. I'm sure that's what i intended.   :clownshoes:   :dawg:

(https://2strokeworld.net/wp-content/uploads/MISC-BS/john-oates.gif)

Title: Re: FPP small can repair, upgrade on mounting
Post by: paul1478 on February 07, 2024, 12:56:47 PM
That really is a really nice looking R5.
Title: Re: FPP small can repair, upgrade on mounting
Post by: m in sc on February 07, 2024, 04:49:03 PM
thanks guys. it's really nothing too terribly special but its a solid rider. since no one bought it it just keeps getting nicer parts thrown at it when i'm bored. lol. i am -really- happy with the texavina seat on it . the FPPs were a  spur of the moment opportunity... so i bit.  This is the down side / up-side of not having a big project taking up shop space or budget

Title: Re: FPP small can repair, upgrade on mounting
Post by: IR8D8R on February 26, 2024, 01:51:23 PM
Your can's exits look a lot different than my early FPP's. Unless there's a trim cap I'm missing

Mark's stickers came out nearly indistinguishable from the originals. :clap:

You almost never see these cans with the stickers intact. Probably because they keep falling off and get torn up.

IR8D8R
Title: Re: FPP small can repair, upgrade on mounting
Post by: Djg8493 on February 27, 2024, 04:02:36 PM
Those decals came out great, if you still have extra I'd buy a set or two. 
I tried the same process when I put smaller cans on my JLs but the site I went through to copy the sticker didn't end up well.  And I think I had to by 30 sets... :haw:
Title: Re: FPP small can repair, upgrade on mounting
Post by: 2steve on March 17, 2024, 10:26:54 AM
IR8D8R, your snap ring fixed guts in the FPP can is actually much easier than the factory original. The end cap is fixed in with a wire, which is HARD to fish out. Steel wire in a groove that has to be pulled/scraped out against aluminum. Makes one wonder how many more times it will hold.

Rather than trust the hose clamps to hold the cans on, I rigged up a spring kit with rivets yesterday. Gonna see how well that does. Stickers from Mark made me realize how valuable the cans are. No way I want to lose them on the road now:
Title: Re: FPP small can repair, upgrade on mounting
Post by: m in sc on March 19, 2024, 07:22:24 AM
looks great steve  :vroom:  :toot:
Title: Re: FPP small can repair, upgrade on mounting
Post by: 2steve on March 19, 2024, 11:12:05 AM
Wife spotted that polished stainless band material in a 30 ft roll at the Amazon bin store. I would have walked right past it. It is excellent for this spring application. Have plenty extra, of course.
Title: Re: FPP small can repair, upgrade on mounting
Post by: Dvsrd on April 01, 2024, 04:29:13 PM
Yoshimura spring  :burnout:
Title: Re: FPP small can repair, upgrade on mounting
Post by: m in sc on April 01, 2024, 04:30:55 PM
steves fancy like that.  :gentleman:
Title: Re: FPP small can repair, upgrade on mounting
Post by: 2steve on April 01, 2024, 05:04:19 PM
Yoshi is very good to order from direct.
Got springs, spring puller tool and a couple of their stickers.
All packaged in cool individual logo'd parts zip lock bags which come in handy later :thumbs:
Title: Re: FPP small can repair, upgrade on mounting
Post by: IR8D8R on April 02, 2024, 02:27:43 PM
I've been wondering what cans would be best to replace these with if you had to. The stinger is partially in the can originally so I presume that you should try to match that length? Then you'd need to weld on a longer stinger of similar length to other pipes to use a slip-on can? Or would it make a difference?

IR8D8R
Title: Re: FPP small can repair, upgrade on mounting
Post by: m in sc on April 02, 2024, 02:52:52 PM
I wasn't sure i was going to be able to save mine.. if not, was going to go with Tyga cans. it requires the 3 bolt flange to be welded on the stinger, but thats no big deal. here's a link to the page and some screenshots below. lots of options.

https://tyga-performance.com/index.php?cPath=72_1035_74_89&osCsid=va476r4gmpvtoel98og9c3r7i3