fuel line

Discussion in 'Motorized Bicycle General Discussion' started by motorized kodiak, Aug 15, 2013.

  1. motorized kodiak

    motorized kodiak New Member

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    hey guys, my bike isnt starting and i suspect it has something to do with the fuel line, the fuel line has no bubbles in it at all, and my fuel filter is complete full, is this a problem?
     
  2. bairdco

    bairdco a guy who makes cool bikes

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    no. that's good. if there's fuel in the line and filter, that means fuel's flowing from the tank.

    if your carb has a drain screw in the float bowl (like the NT) you can pull that out and make sure fuel's getting in the carb.

    if it's never ran before, try disconnecting the kill switch. that's a common problem, assuming you have a china two stroke...
     
  3. motorized kodiak

    motorized kodiak New Member

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    my bike doesnt start at all, even thoug it has before, all the electronics are done correctly, i get a spark aswell,do you think the timing of the spark is off? thx for the reply
     
  4. bairdco

    bairdco a guy who makes cool bikes

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    pretty rare for the timing to be off.

    even though your wires look right, the kill switches often fail.

    if it ran before, check the basics first. fuel and spark.

    pull the plug, lean it against somthing metal with the wire attached and kick it over to see if you have spark. might be a bad magneto or cdi.
     
  5. crassius

    crassius Well-Known Member

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    what kind of engine is it?

    is the spark plug wet?
     
  6. dumpstercrusher

    dumpstercrusher New Member

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    did u ever mess with th magneto? what kind of spark plug? running the crappy chinese spark boot and wire?

    i had a similar situation before. Had a spark but engine would not start. i looked down and saw my wires got disconnected at one point. plugged it and it started! Another incident I had was the spark plug. chinese spark plug wasnt giving me "enough" spark till i switched over to an NGK. Then it hapoened again after the spark plug and changed out the chinese boot and wire with an automotive one and never had a problem again.
     
  7. dumpstercrusher

    dumpstercrusher New Member

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    Oh also, i messed wit the magneto at one point and the timing was off and the motor wouldnt start till i turned the magneto at a 1 o clock direction with the piston at the top and that fixed my other problem as wwell
     
  8. motorized kodiak

    motorized kodiak New Member

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    yeah thx for the reply everyone, i have a spark,and i also have a ngk b6hs spark plug, i have the same spark plug cap and cdi, but, i did spray degreaser on the spark plug to clean it, even though, i did put the spark plug that originaly came in the kit in it, which i had never used before, and it still didnt start!, i just dont know what to do, and when ever i got to see my bike, i notice there is a mark on the ground of fuel, that came out of the exhaust, is it possible that my spark might not be strong enough? thanks for the suggestion people!
     
  9. motorized kodiak

    motorized kodiak New Member

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    its a two stroke engine kit
     
  10. dumpstercrusher

    dumpstercrusher New Member

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    you said ur still using the stock spark plug wire? is the mark on the ground like a blackish dot? i used to have oil come out my exhaust everytime i let it sit. i was using 16:1 ratio at the time. i bumped it to 32:1 n it went away
     
  11. 2door

    2door Moderator
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    If the engine hasn't run yet and its dripping fuel from the exhaust your engine is severly flooded. That's why it doesn't start.

    Here are a few places to start:
    1. Float is too high or not floating due to a crack and filling with fuel
    2. You left the fuel petcock open and the float valve didn't shut correctly.
    3. Carburetor main jet is not screwed in and allowing too much fuel into the engine. This is common. The jet wasn't tightend from the factory and fell out. It will be laying in the float bowl.

    Start there and let us know what you find. We're assuming you are positive you have ignition and the choke is open.

    Tom
     
  12. motorized kodiak

    motorized kodiak New Member

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    yeah mate im running teh stock spark plug cable and cap, but i have an ngk b6hs in it, and i am also running 32.1 mixture, i have no idea why it doesnt start though :( :( :(
     
  13. motorized kodiak

    motorized kodiak New Member

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    thanks 2door!, i might open my carbourretor and check if the jet is loose, do you have any tips for opening the carb,like is there any fragile bits?
     
  14. 2door

    2door Moderator
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    We don't know what carburetor you have but there is no trick to opening one up. Typically there will be two Phillips head screws that hold the float bowl on and that's all you need to do to see what's on the inside.
    If you have the NT style, the main jet screws into the carburetor body from the bottom up. The float is the plastic donut shaped thing that you'll find in the bowl. make sure it doesn't have any fuel in it and will float when dropped into a container of gasoline.

    Good luck.

    Tom
     
  15. motorized kodiak

    motorized kodiak New Member

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    thanks 2 door! i do have an nt carb on it, thx very much mate, i am going to open it some time soon ahahah! :)
     
  16. motorized kodiak

    motorized kodiak New Member

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    although the carb was sitting for a while and i never touched it, anyway i hope it will fix my bike!
     
  17. crassius

    crassius Well-Known Member

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    when taking the bowl off an NT or similar clone carb, it helps to hold the tickler button down while removing the screw on that side - I've seen folks break that button with their screwdriver while turning the screw
     

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