Engine wont run, so confused

[DAmBike]

On the first ride the bike ran fine, but on the second ride it stalled and wont start. So naturally i checked spark, have it, then fuel, fuels getting to the carb, then compression, i have it, so what in the world is stopping this thing from running?? Oh yeah i read that sometimes a spark plug will spark outside of the cylinder but not inside, so I tried a different spark plug and there is spark.

 

[crassius]

how much compression? head bolts come loose a lot of times

 

[Cozmik Mezzenger]

I have seen a clogged main jet do what you are experiencing. To be on the safe side, take the carb apart and clean everything, especially the jet.

 

[DAmBike]

Thanks for the responses ill tighten up the head and clean the carb. THANKS

 

[DAmBike]

Neither worked, although my main jet unscrewed What now?

 

[crassius]

not understanding - did you screw main back in? - is plug getting wet with fuel? - how many pounds compression are there?

 

[DAmBike]

I took the carburetor apart and the main jet litterly fell out of the carb! When I checked the plug is was wet with fuel. I haven't checked compression yet. Ill do it tomorrow. It definitely has enough to slow you down when pedaling with the clutch engaged. oh yeah and i did tighten the head bolts

 

[crassius]

don't forget to dry the plug and check for wetness again now that jet is in

 

[CrazyDan]

Pretty sure the issue just "fell" out into the light.

 

[Frankenstein]

Pretty sure the issue just "fell" out into the light.

Funny how often those things just fall out, I don't expect they try to torque them at all at the factory, probably just quickly installes by hand and if you're lucky it's finger tight, more likely just a few threads screwed in and forgotten for the next in the line of a million, I'd be in a rush too.