My 63 Schwinn 97cc motorized bicycle build

Discussion in 'GAS POWERED BIKES' started by Dowie Soetenga, Oct 25, 2010.

  1. D4NK

    D4NK

    0   0   0

    Joined:
    Nov 8, 2010
    Messages:
    9
    Awesome build!!!

    Sorry if this is a newbie question but where did you get the motor? Was it a kit?
     
  2. Dboy9887

    Dboy9887

    Rating - 100%
    1   0   0

    Joined:
    Oct 15, 2010
    Messages:
    283
    Location:
    Queens NY, Ft Wood MO
    It looks sweet, but how does it ride? Could you possibly post a video?
     
  3. Dowie Soetenga

    Dowie Soetenga

    0   0   0

    Joined:
    Oct 25, 2010
    Messages:
    72
    Location:
    Milwaukee Wisconsin

    Thanks for the positive feedback. No kit here. This thing is built from sweat and tears. The motor is a Honda / Lifan 97cc 2.5hp four stroke, flathead, sidevalve. The clutch is a Hillard #35 12T. The motor mounts and related are hand made. The rest of the parts are 90% vintage Schwinn. It rides great. I'm going to swap out a sprocket to give her a little more low end power. Right now the top speed is around 33-35mph. I'm going to scale it back a little. I'll get some video footage on youtube next weekend if I can.
     
  4. Dboy9887

    Dboy9887

    Rating - 100%
    1   0   0

    Joined:
    Oct 15, 2010
    Messages:
    283
    Location:
    Queens NY, Ft Wood MO
    Wow 30mph? thats awesome!!
     
  5. masterpoop63

    masterpoop63

    0   0   0

    Joined:
    Jan 2, 2010
    Messages:
    651
    Location:
    Vallejo CA
    wheres my welder? i am now officially gona build a 5 horse bike like this 8) once i get my welder working and some steel then ima buy a cranbrook so i dont feel bad about chopping up a jaguar :mrgreen:
     
  6. bikebum1975

    bikebum1975

    0   0   0

    Joined:
    Aug 29, 2008
    Messages:
    161
    Location:
    Free and easy down the road I go
    That is one sweet ride man. Where did you pick the motor up from?
     
  7. Dowie Soetenga

    Dowie Soetenga

    0   0   0

    Joined:
    Oct 25, 2010
    Messages:
    72
    Location:
    Milwaukee Wisconsin
    Here are some pictures from last weekend. I think she's all dialed in. I changed the jack shaft output sprocket from 10T to 9T. I've also added a modern rear V brake, and a chain tensioner.
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
     
  8. Dowie Soetenga

    Dowie Soetenga

    0   0   0

    Joined:
    Oct 25, 2010
    Messages:
    72
    Location:
    Milwaukee Wisconsin
    The motor is a 2.5HP 97cc four stroke flathead. I bought it on ebay for $90.00. It's a Honda Lifan. I wanted a vintage Briggs, but they were too expensive for my budget.
     
  9. chainmaker

    chainmaker

    0   0   0

    Joined:
    Nov 15, 2009
    Messages:
    185
    Location:
    Plymouth Ma
    Nice looking bike..did you fab those rear brake bosses, or where did You get them those are sweet.

    Cheers
     
  10. dash

    dash

    0   0   0

    Joined:
    Jun 20, 2010
    Messages:
    278
    man sweet build!! how did you figure out the gear reduction ,a four stoke engine would be cool on my bike not to mention way more reliable and sound better!
     
  11. cobrafreak

    cobrafreak

    0   0   0

    Joined:
    Oct 8, 2010
    Messages:
    522
    Location:
    Carmichael California
    Very nice. Good lines on that bike.
     
  12. pepper

    pepper

    0   0   0

    Joined:
    Dec 1, 2009
    Messages:
    245
    Location:
    Just moved to Knoxville TN
    A red tank would really set off your bike
     
  13. dash

    dash

    0   0   0

    Joined:
    Jun 20, 2010
    Messages:
    278
    is your sprocket mounted to a free wheel ? how did you pull that off?
     
  14. Dowie Soetenga

    Dowie Soetenga

    0   0   0

    Joined:
    Oct 25, 2010
    Messages:
    72
    Location:
    Milwaukee Wisconsin
    The right side is pedal assist with a free wheel.

    The left side is motor assist with a free wheel.

    The gearing is all math. My blueprint drawing calls out the sprockets and ratios. I ended up making my jackshaft output sprocket 9T vs 10T to gear the bike just a little lower. Perfect.

    The speed is now 29.4mph at 4,200 rpm.
    [​IMG]
     
  15. diceman

    diceman

    0   0   0

    Joined:
    Apr 3, 2010
    Messages:
    119
    Location:
    Kitchener , Ontario
    nice job ...yourthe only other person besides me that i have seen use that motor .
    i did a jessie james chopper bike with the same engine ( sounds good ) .
     
  16. chainmaker

    chainmaker

    0   0   0

    Joined:
    Nov 15, 2009
    Messages:
    185
    Location:
    Plymouth Ma
    About those rear brake bosses?????
     
  17. Dowie Soetenga

    Dowie Soetenga

    0   0   0

    Joined:
    Oct 25, 2010
    Messages:
    72
    Location:
    Milwaukee Wisconsin
    Yes. I did make the rear brake bosses. Here is a tread I started showing how to make them.
    http://www.ratrodbikes.com/forum/viewtopic.php?f=1&t=33168
     
  18. Dowie Soetenga

    Dowie Soetenga

    0   0   0

    Joined:
    Oct 25, 2010
    Messages:
    72
    Location:
    Milwaukee Wisconsin
    Just put on my tank decals. Next is custom exhaust, heat shield / guard.
    [​IMG]
    [​IMG]
    [​IMG]
     
  19. cobrafreak

    cobrafreak

    0   0   0

    Joined:
    Oct 8, 2010
    Messages:
    522
    Location:
    Carmichael California
    I like it. Can you take a picture of the right hand side of the bike please?
     
  20. Dowie Soetenga

    Dowie Soetenga

    0   0   0

    Joined:
    Oct 25, 2010
    Messages:
    72
    Location:
    Milwaukee Wisconsin
    Here are some pictures of the right side of the bike.
    [​IMG]
    [​IMG]
    [​IMG]
     

Share This Page