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Thread: What to do with a old Yamaha R5 350 two stroke.

  1. #1
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    What to do with a old Yamaha R5 350 two stroke.

    OK, so I have been thinking about doing a trike conversion on a 1970 yamaha R5 350 two stroke. I found that there was once a kit made to convert them but the post I was reading it from was very old, and sounds like all the jigs to make the kits was tossed. I have a hole bike plus a extra engine, and think it would be a cool build. Does anybody out there have any new info on the conversion kits, or real good Pics to go off of?



  2. #2
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    What do you want for the R5? I'll I'd hate to see it turn into one of those projects that never get finished besides that I really like R5/RD/RZ bikes
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  3. #3
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    Yeah, those are really great bikes. I have a '72 R5 with a later RD350 top end on it. I really like the combination because it has the classic looks of the R5 (which is a MUCH better looking bike than the RD, in my opinion), but it has the performance of the reed-valve RD motor. Now I just need to swap the RD 6-speed tranny into it.
    I've never seen a trike conversion on one of those old Yamaha twins. Not that it wouldn't make a great trike, but I think it would be an even better motorcycle. They are really sweet bikes.

  4. #4
    taz is offline First Time Rider Arm chair racerNew to the board
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    get a hold of vielmonkey on here if you can track him down he has a aftermarket frame and swing arm think there is front end and rear axle but you willl have to talk to him

  5. #5
    Join Date
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    I will try to get ahold of him, maybe I will use my extra engine for a trike, and Keep the bike together for a Cafe Racer.

  6. #6
    KASEY's Avatar
    KASEY is offline weee weeee weeeeeeeeeee ! ! ! The day begins with 3WW
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    i would trans plant the motor and keep the bike intact!! then it could always go back in.... or send it to me,, i have a trx 70 to put it in!!!!

  7. #7
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    Quote Originally Posted by KASEY View Post
    i have a trx 70 to put it in!!!!
    ^^This^^ Ever since I saw that video on youtube... Excellent idea... Do it Kasey...
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  8. #8
    Join Date
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    if the link works buy this one insted
    HI Performance ATC Frame w/ RD350 Motor, Vintage sand machine! -

  9. #9
    Join Date
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    http://reno.craigslist.org/mcy/2764714172.html

    here is the posting on craigs list. sorry about the first one

  10. #10
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ID:	140642That is a stock rear axle on that machine. My frame has the optional chrom moly hollow rear axle on it, which was supposed to be much stronger than a stock axle. My frame isn't much prettier, but originally came with an r5 in it that was seized. I did have the rd350 engine transplanted in it, but my buddys kid kept bugging me to sell him the rd350, which he ended up backing out on. Oh well. I also have a set of the gold DG heads for the RD350 on the shelf. This poor old trike, still shoved in the corner.
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  11. #11
    Join Date
    Jan 2012
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    Quote Originally Posted by Vealmonkey View Post
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ID:	140642That is a stock rear axle on that machine. My frame has the optional chrom moly hollow rear axle on it, which was supposed to be much stronger than a stock axle. My frame isn't much prettier, but originally came with an r5 in it that was seized. I did have the rd350 engine transplanted in it, but my buddys kid kept bugging me to sell him the rd350, which he ended up backing out on. Oh well. I also have a set of the gold DG heads for the RD350 on the shelf. This poor old trike, still shoved in the corner.
    The gold DG Heads Look Awsome, I have a Picture of a Cafe Racer with them. They remind me of the DG head I had on my 83 250r, they got to be worth a mint to the right person. I need to get a new kick start shaft for my second engine, and that is about it. So I will have to check ebay and then do something with that engine.

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