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Motorized mountain bikes

Discussion in 'Channel Zero' started by -KARMA-, Jan 29, 2006.

  1. -KARMA-

    -KARMA- Junior Member

    Joined: Dec 21, 2005 Messages: 105 Likes Received: 0
    yesterday i was out and about and i saw some kid rflying around on a low end mountain bike with a lawn mower motor hooked up to it. Does anyone know how or where i could find out how to make on eof these?
     
  2. Dick Quickwood

    Dick Quickwood 12oz Loyalist

    Joined: Aug 25, 2002 Messages: 14,783 Likes Received: 14
    you sure it was a lawn mower motor?
     
  3. Brewster Baker

    Brewster Baker 12oz Loyalist

    Joined: Sep 11, 2003 Messages: 13,011 Likes Received: 527
  4. -KARMA-

    -KARMA- Junior Member

    Joined: Dec 21, 2005 Messages: 105 Likes Received: 0
    pretty sure it was a lwan mower motor. I know someone who did it with one a while back but he moved and i lost all contact with him
     
  5. RumPuncher

    RumPuncher Elite Member

    Joined: Jul 4, 2005 Messages: 4,500 Likes Received: 5
    hey 'KARMA'... you dont write 'KRAMA' do you?

    you mean a bike like this?
    [​IMG]
     
  6. -KARMA-

    -KARMA- Junior Member

    Joined: Dec 21, 2005 Messages: 105 Likes Received: 0
    nah i dont write karma or krama. And yep thats exactly what it was liek except it was a walmart bike with a motor from something that the kid probably took apart
     
  7. turnout

    turnout New Jack

    Joined: Aug 3, 2005 Messages: 11 Likes Received: 0
    I think I'd ask the kid that had the bike...that or be fascinated by the fact we are able to walk...

    i like pedals
     
  8. Kr430n5_666

    Kr430n5_666 Banned

    Joined: Oct 6, 2004 Messages: 19,229 Likes Received: 30
  9. dumy

    dumy Veteran Member

    Joined: Oct 8, 2004 Messages: 5,056 Likes Received: 0
  10. Smart

    Smart Dirty Dozen Crew

    Joined: Apr 14, 2000 Messages: 17,017 Likes Received: 175
    I got a motor from Golden Eagle that I'm mostly stoked about... though it did mysteriously quit on me a month back and even buying a new coil hasn't fixed it... still, it's fat for $500

    average about 21mph...
     
  11. SteveAustin

    SteveAustin Veteran Member

    Joined: Mar 12, 2002 Messages: 7,042 Likes Received: 2
    As much as I love motorcycles and dirt bikes...I have no desire whatsoever to put a lawnmower engine on one of my mountain bikes.If you're looking to go in that direction...go moto.
     
  12. Hokus

    Hokus Member

    Joined: Mar 11, 2004 Messages: 482 Likes Received: 0
    i say, Get a dirt bike pussies
     
  13. Tough Love

    Tough Love Senior Member

    Joined: Oct 10, 2004 Messages: 1,894 Likes Received: 2
    id rather just buy a dirt bike
     
  14. Dick Quickwood

    Dick Quickwood 12oz Loyalist

    Joined: Aug 25, 2002 Messages: 14,783 Likes Received: 14
    ^ got a couple thousand dollars handy?

    i'm wondering what kind of engines people use, coz most lawnmowers have vertical crankshafts making it complicated to connect to the wheel

    yo smart, that shit has no spark or what?
     
  15. Smart

    Smart Dirty Dozen Crew

    Joined: Apr 14, 2000 Messages: 17,017 Likes Received: 175
    Well, the motor I first saw used was a stick edger with a friction drive. Basically 'friction' means that there is direct contact from the motor to the tire... like 2 cogs, one turns forcing the other to also revolve... this isn't really efficient and wears out tires like crazy.

    The motor I have is a Komatsu motor used by Red Max for a variety of applications like edgers and weedeaters...

    As far as my actual problems? I'm nearly stumped... I have spark when I take the plug out but when I put it in, nothin'

    I have seen plugs that can spark outside of the chamber but just don't have the strength to fire under compression... so I bought a new plug. Still no go, so then came the new coil, same results... though I would say the outside spark is much bigger now with new stuff, when I put it together I still get nothing...

    Next I guess I'll have to break down the carb but? I know it's getting gas because I can flood the plug. I've also dropped 101octane fuel right into the chamber and only got the motor to turn over a couple extra times but it never even came close to 'catching' so???

    *It's a stader setup because, obviously, you don't need a distributor with only one plug. I've set the gap on the coil the same way as I always have using a business card and checked the gap on the plug but that's all good...

    I'm pretty pissed about the whole thing because I have rebuilt all kinds of engines and I've never been this lost. I mean, there just aren't THAT many parts in a little motor like that
     
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