some development :)

Discussion in 'Photos & Bicycle Builds' started by vax, Apr 14, 2007.

  1. vax

    vax Guest

    Some pictures,to show what can be built from russian 1.2hp engine :)

    Small list what's done to the engine:
    - reedvalve direct intake
    - Tillotson 24mm carburator
    - watercooled cylinder with some porting (3 extra ports made and enlarged existing ones)
    - kawasaki kx65 radiator
    - electronic battery ignition
    - GOL special piston with hardchromed L-ring
    - Piaggio conrod
    - selfmade clutch

    What's missing yet:
    expansion chamber, clutch cover, ignition cover, chain

  2. vax

    vax Guest

    The engine started it's life looking identical to this :)
  3. srdavo

    srdavo Active Member

    that is wild!!!
  4. vax

    vax Guest

    It uses most parts from the previous version I did
    New version has only different crankcase and reedblock.
    It's sounds and rides more like small motocross bike, than motorized bicycle :)
    I haven't measured top speed yet, but should be over 50mph
  5. jeffspeeder

    jeffspeeder Guest

    wow you did some really big changes to that motor i like it the way it is now. do you get good speed on that?

    that is so sweet the work must have been hard to turn a chines motor into that. do you use it as a daily rider?
  6. vax

    vax Guest

  7. gone_fishin

    gone_fishin Guest

    awesome awesome tweaks, for sure!

    i just know someone's gonna want to hear all about your methods of welding came up a coupla times somewhere in general or tech/mech.
  8. vax

    vax Guest

  9. Awesome bike, after watching the video I think I'd be one of the guys in the back pedaling like mad. The russian motor is actually less powerful than a chinese motor to start with. I imagine it must make 10 times more power now with such great modifications.
  10. locoWelder

    locoWelder Guest

    WOW :shock: I just watched the video.....crazy man!!! wish we had something like that around here
  11. vax

    vax Guest

    Some new video stuff...I'm the one with blue jacket and red helmet, also featuring at the end of the video :)
    I totally screwed up with brakes (oiled them), so I had to brake with shoe to the tarmac :) One lap more and I would been braking with my skin :grin:
  12. iRide Customs

    iRide Customs Member

    Fantastic mods! I wish I had the patience to do engine work.

  13. JosephGarcia

    JosephGarcia Guest

    I love the look of that engine, it just looks lean and mean.

    Is that an actual dirt bike your putting it into? or a weird bicycle frame with fairings?

    I know nothing about dirtbike models, so I can't tell.
  14. vax

    vax Guest

    It's Riga-13 moped frame (uses same engine) but there's not much left of it.
    The arc-shaped tube is added because of the reed valve and square-section upper tubes to fit different fuel tank and saddle. All the plastics, tank and saddle are from Chinese pit bike (4-stroke 125cc dirt bikes, Honda Monkey copied engines, u know)
  15. d1noct

    d1noct Guest

    damn dude that is sickkk... um you know what would be similar to that... the motorcoss bike from x games... it looks like a real dirt bike but u pedal it... just put in a engine in that and your good to go.... it would be like riding a dirt bike down the street but cops cant do anything since its a moped....
  16. Egor

    Egor Guest

    Vax - You are having too much fun. Years ago we could pull off something like that but now everyone is so worried about a law suite, OH well. That porting looks familiar, "a full race Yamaha!". I have seen a few of the Russian engines for sale but they are all from China would never hold up like that. That clutch basket looks like it is off a XR75 honda. Does the Russian engine come with an Iron sleeve? The ingenuity is the best part, keep us informed and keep up the U tube. Have fun, Dave

    PS: I wonder what you could do with a real Whizzer! I know what I would do if I had one there. DO you have good Hospitals?
  17. d1noct

    d1noct Guest

    this is the bike i was talkin about putting an engine on...
    but i think the frame would make it difficult for an engine unless you get real creative... do you guys think that you would be able to take the fairings of and mount it on a bmx and then put the engine one??

  18. Egor

    Egor Guest

    I think it could be done. You would have to make the engine a stress part of the frame. I.E cut out the down tube and replace it with the engine, ignoring the front mount and using the head bolts, look like a PW50 Yamaha. Have fun, Dave
  19. Herrmanator8

    Herrmanator8 Guest

    thats rediculous...i just cant even fathem the work you put into that and the shoulda just bought a kawasaki kx80 or kx85 motor..

    great job though, though i think it's be more unique on a bicycle instead of a pitbike frame

    great job though, jon
  20. tomcatfranks

    tomcatfranks Guest

    It's got a turbo!! SWEET!!!