Bike not starting, Need help

[crassius]

no amount of compression will stop any bike I've seen if clutch is working right

 

[Jonathan]

I try the solution you recommended but the bike is still not starting. I pedal without the clutch for more than 20 minutes and did the method but still not started. its giving sounds like its going to start but it doesn't. I even unplug the kill switch and try it but it still won't start. When I pedal it seem like it's struggling to start and the engine is warm but still nothing. I'm also experiencing that the throttle is sticking.

 

[mrbg]

For what it's worth I have 2 new "balanced motor's" and they come with a higher compression and tight when new. I had to pedal hard and pull back on handlebars like trying pull wheelie to get all my weight on the rear wheel, in the morning when it's cold it's a bear. I've run a couple of tanks thru them so its not too bad once they've been started they fire up ok and one them had a little oil and around the plug, I put new washer on the plug and its good now.

 

[mrbg]

I try the solution you recommended but the bike is still not starting. I pedal without the clutch for more than 20 minutes and did the method but still not started. its giving sounds like its going to start but it doesn't. I even unplug the kill switch and try it but it still won't start. When I pedal it seem like it's struggling to start and the engine is warm but still nothing. I'm also experiencing that the throttle is sticking.

 

[MacZulu]

is your magnet in backwards? if your timing is out it won't run. most have the notch positioned at 01:00, my zoombicycle engine had a 12:15 one.

 

[crassius]

throttle sticking suggests something wrong with the carb - slide in wrong or cable binding so that carb does not close enough to start - one should hear a slight click when slide hits bottom