my motorbike is no more

Discussion in 'General Questions' started by masterx1234, Jan 7, 2010.

  1. masterx1234

    masterx1234 Member

    well here is my 80cc kit i got off ebay a year ago, now its dead and pretty much ruined, i removed it off the bike and placed it in a crate, the motor is seized and the throttle cable and clutch cable are both snapped and theres lots of rust on every part, and yes i know the muffler is on upsidedown in the picture. im gonna be buying a friction drive kit from bikemotorparts.com and a motor from thatsdax.com just because these chain drive kits are driving me nuts and are horrible..
     

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  2. Someguy

    Someguy New Member

    How much time/miles did you get out of it before it crapped out?
     
  3. masterx1234

    masterx1234 Member

    maybe 400 or so
     
  4. motorpsycho

    motorpsycho Active Member

    now don't take this the wrong way, but these motors are not horrible.
    they are fine as long as they are well maintained, tuned are they are not starved of oil.
    I'm not saying that you did anything wrong, i'm just saying that these are not high quality motorcycle engines...they are toy engines, and they need a little extra attention to make them run a long time.
    The cables for instance, could use a good lube now & then with some teflon based lubricant to keep them freed up.
    the motors usually seize from lack of lube. the majority of these motors are all aluminum except for maybe the piston sleeve, rings, connecting rod, crank shaft and the gears inside. so saying that there is rust "on every part" is not possible...aluminum will not rust. rust on the chain and sprocket could be from lack of lubrication and them sitting "dry" exposed to humidity. Have you pulled the head / jug off to see why the engine seized up?
    I am not sure of your mechanical abilty and / or mechanical knowledge so let me just say that these chain drive kits are not rocket science. (hopefully without insulting you) they are very easy to make work and last IF you know how to set one up right, and tune it correctly. There is no such thing as "bolt on & go" with these kits...there is a lot of tinkering, and modifying to get one set up right.
    This is just my opinion, and experience from building / riding 2 different bikes with these motors.
     
    Last edited: Jan 7, 2010
  5. professor

    professor Active Member

    Here is a tip.
    Next kit you get. pick up some clear spray paint and shoot whatever doesn't have paint on it. A lot of time will go by before rust occurs.
    I do this on anything I buy that goes outside (bikes for one).

    Being in one of the ice and snow capitol cities, I spray a mix of oil and cosmoline type stuff inside every panel and underneath my cars.
    Mike
     
  6. masterx1234

    masterx1234 Member

    thanx for the tips guys, im gonna stick with friction drives from on now
     
  7. Mountainman

    Mountainman Active Member

    she likes her THING

    well
    if you want someTHING truly simple in design
    they are hard to beat

    I recommended a friction for a Lady friend a while back
    she is not one to be able to repair or adjust anyTHING
    she has been riding it for 6 months maybe ?

    she likes her THING
     
  8. wanna sell the old parts or the whole kit?
     
  9. masterx1234

    masterx1234 Member

    yea actually i am selling it for 40 bucks, i had a friend that wanted to buy it from me a while back.. i live in kentucky, and the engine runs fine, i know i said it seized up, but i didnt mean literally.
     
  10. i have 1,000miles on mine and no rust.
     
  11. Esteban

    Esteban Active Member

    All bike motor kits have their pos & cons. I prefer the simplicity of a friction drive, with a GOOD motor, over the Chinese kits. In MY opinion,, you get what you pay for.
    I have this extra one for sale.

    http://www.motoredbikes.com/showthread.php?t=24596
     
  12. XenonDream

    XenonDream Member

    Sorry to hear your kit crapped out. Seems some of them last forever, and others fall apart just as they're broken in. I have a SkyHawk 66cc kit, and have put about 900 miles on it since I got it October 20th. I ride the snot out of it, and its performance hasn't yet diminished in any way. I haven't had any trouble with anything other than the tensioner pulley wearing out. But, this raises a question for for anyone who has owned or currently owns both 48cc and 66cc kits: I'm expecting a good tax return this year, and am looking to buy an engine kit or two. I'd like to ask if either of them is a better performer, etc. I'm about 210 lbs, and I carry a rack trunk and panniers full of goodies. I can't decide what to do.
     
  13. arceeguy

    arceeguy Active Member

    Hahaha - all of a sudden it isn't seized up (and actually runs fine) when someone offers to buy it for parts. lol

    FWIW - if someone needs an engine, you can buy brand new engines (without the rest of the mounting hardware, etc.) for less than 75 bucks on fleabay.
     
  14. stealthc9

    stealthc9 Member

    i'll buy it for $45 shipped
     
  15. retromike3

    retromike3 Member

    replacement engine

    I got my replacement engine from Zoom cycles and it cost me about 75 bucks U.S. and its been running like a watch for about six months. I did have some mounting bracket problems but those were my fault. I think it was a special one time deal but, it was just what I needed.

    I replaced the stock chain with a 215 nickel plated one and got a top hat hub adapter so I would not have to bolt the rear sprocket to the spokes. I still get a bit of chain sag/tighten but I can live with it.

    I know that drive rollers are simple but I think that a roller chain is the most efficient way to put power to that rear wheel.

    Mike Frye the bike guy
     
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