Clutch Clutch troubles...No start condition

Discussion in 'Transmission / Drivetrain' started by Patdon10, Feb 10, 2009.

  1. Patdon10

    Patdon10 New Member

    Ok guys,
    I did my first build over christmas break, everything is ready and pretty much everything is installed, but I have a no start condition.

    I don't think I installed the clutch cable right. As soon as I put in the spark plug and the engine goes through its first stroke, compression builds, and the wheel becomes VERY hard to turn with the clutch arm engaged or disengaged. I've heard some people mention "pedal mode". I don't have that. If I press the engager it's always hard to turn. I pushed my bike down my sloped driveway once. With a lot of force I was able to get the wheels turning. It sounded like the engine was started, but I new it was just being pushed through its stroke. No actual ignition.

    So this is my first question...can someone post a picture of there clutch arm engaged and disengaged. i really think I installed it wrong, because I have no "pedal mode" One thing I noticed I did wrong was I had the second spring between the arm and the thing you feed the cable through...

    After I fix the clutch problem, I doubt the engine will still start. What setting should the carb's choke be on. I can't read chinese. Should it be in the middle? I know the engine is getting gas, because after turning the wheel maybe 100 times I had drop or two of unburnt oil leaking from the exhaust tailpipe.

    Things I know:
    -I'm getting spark (uncompressed). I've pulled the plug and witnessed it when spinning the wheel.
    -Maybe I don't have the right fuel mixture? I poured in the blue synthetic oil first, THEN the gas. After that, I opened the fuel tanks opener and watched a blue liquid that looks like only the oil feed its way to the carb. There has to be gas in there too, right? It wouldn't cause the engine from firing?

    Thanks for your help guys,
    -Patrick
     

  2. cooltoy

    cooltoy Member

    I could make some picks for you but first, can you move the lever on the motor (not the clutch lever on the bars) by hand? You should be able to move it inwards.Mine moves enough that it sits above the joint where the outer clutch side cover meets the engine case. I'll make pics if you want but I have the feeling you just need to take more slack off of the cable by moving the little cable end with the screw in it.
     
  3. Patdon10

    Patdon10 New Member

    Yeah, I can move it as far as a I want inwards and outwards...unless you are referring to how far can I move it with the clutch cable attached to it. Inward you refer to as the front of the bike facing forward...how far left can I push it? Not very far.
     
  4. cooltoy

    cooltoy Member

    By inward I meant towards the clutch side , the same way it moves when you pull the clutch in. If you have any play at all in the cable,that is no good. You should be able to push it by hand.I will take some pics and be back
     
  5. cooltoy

    cooltoy Member

    This pic is with clutch lever NOT pulled in.
     

    Attached Files:

  6. BoltsMissing

    BoltsMissing Active Member

    On our suppliers web site, there is an extensive Chinese to English (Aussie)translation !

    http://www.zbox.com.au/tips.htm

    Scroll down to where it say's
    Read the other bits and pieces for suggested gear lubes prior to starting and riding.
     
  7. cooltoy

    cooltoy Member

    This is with clutch pulled in, bike will not move this way with engine running
     

    Attached Files:

  8. cooltoy

    cooltoy Member

    That's a nice site there Bolts! Could be one of the most helpful ones I've seen. Pics are good!
     
  9. cooltoy

    cooltoy Member

    As for your choke question, the choke is on when you lift the lever UP/ Most pull the choke up to start and when it starts, they push it down a bit and when warm push it all the way down. If you take the air filter off you can see how the choke works.When ON (for cold starts) the little flap shuts off air flow.
     
  10. MotorBicycleRacing

    MotorBicycleRacing Well-Known Member

    Your engine won't start with all that oil in your carb

    Do NOT add the oil first
    Do Not mix the fuel in your bikes gas tank
    Mix it in a gallon container and put some gas in first before you add the oil then
    shake well to mix before adding the rest of your gas then shake again to mix

    Right now your carb is full of oil which you need to flush out with gas.
    You may need to pull your float bowl off to clean out the oil
    Also check and clean your spark plug
     
    Last edited: Feb 10, 2009
  11. BoltsMissing

    BoltsMissing Active Member

    I would add though, Clutch cable stretches, might be an idea to get a HD stainless steel brake cable if the kits cable keeps stretching.
    Also, remember to add lots of grease where the clutch mechanisms are on the lever side ( 3 screws ) by removing the cover, look for the bar and ball bearing. Make sure it's (ball bearing) there, add lots of grease, preferably molly grease. Check the ball bearing against a file, if the bearing gets scratched, replace it cos some are not hardened.
     
  12. Patdon10

    Patdon10 New Member

    Thanks guys, also thanks for the pictures. With the clutch not engaged, the bicycle wheel should move freely? Whats it mean if it does not?
     
  13. Ghost0

    Ghost0 Guest

    You may have lost the little ball that goes between the engager pin and the internal clutch pin.
     
  14. Patdon10

    Patdon10 New Member

    How would I of lost that if I've never taken apart the engine? Where exactly does it go.
     
  15. Ghost0

    Ghost0 Guest

    Well I assume that you removed the sprocket cover to install the chain, that is where the ball can come out. If you remove that sprocket cover there should be an approximately 1/4" diameter pin that fits inside the sprocket. Behind that pin, is a ball. Some people lose them when they are attaching the chain. They always find the pin but the ball can sometimes disappear.
     
  16. Patdon10

    Patdon10 New Member

    ok. I'll take a look. If the ball disappears, will the engine not fire?
     
  17. BoltsMissing

    BoltsMissing Active Member

    If you mean the hand clutch lever is depressed with the pin down, "nutruel", yeah the wheel ought to spin.


    If it seems like grabbing it's one or two minor adjustments,
    1 being the cable needs tightening at the brass bit, or
    2 the clutch plate needs adjusting.

    Try this similar method,

    1. Adjust the cable so there is 0 slack.
    2. Revove the 5 plate screws and adjust the star-nut as per instructions, that being adjusting it while the clutch lever is depressed and the pin down.

    3.let go of the lever so it engages the clutch and see if the engine turns on compression, then dis-engage the clutch again. That way you know immediately the clutch plate is adjusted correctly before a new cable has a chance to stretch.
    Once that is adjusted correctly, it hardly goes out for a while.

    4. The important thing to keep an eye on next is that 0 slack on the cable.
    So if the clutch keeps playing up when the lever is depressed, from then on always go to the cable first and check if it has stretched. If it has, re-adjust the cable, and keep re-adjusting when new.
    If it keeps stretching and starts to get annoying, replace it as mentioned earlier.

    If the cable has not lost it's 0 adjust, then go back the star-nut at the clutch plate and do that process again. after a few intitial runs it stabalizes.

    Tip
    0 slack on cable first, star-nut 2nd
     
  18. Ghost0

    Ghost0 Guest

    If you lost the ball it will still start but I don't advise it. You will have no way to disengage the drive. Runaway bike.
     
  19. Patdon10

    Patdon10 New Member

    alright guys, I'm at home with the bike. I flushed it out and I felt it fire once, but since I don't have a kill switch wired out the "little ball", its a bad idea to let it run. Can someone take a picture of the "little ball" and where it goes? Where can I get a replacement?
     
  20. Patdon10

    Patdon10 New Member

    I got the bike to fire for the first time tonight. As I said...I must have lost the ball, because I can engage or disengage the clutch, but nothing happens. Its always hard to ride. I pushed it as hard as I can down my driveway which is a hill. I opened up the throttle to get as much air in as possible. POP.....POP.....POP...POP..POP..POP it ran for maybe 3 seconds then stopped.

    Now heres my question... Whenever I get the chain moving, I can peddle the bike with no issues. Its not much more than peddaling normally. Why is it easy to peddle when its moving? Why wouldn't the engine stay alive?
     
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