thinking the motors shot!
 

this past weekend at our club race my motor cut off in the main and i could never get it started again. i can start it now but ONLY if i hit the trigger and givew it throttle, as soon as i let go and it idles, it cuts off. any ideas of what might be wrong? the compression is pretty bad also but wasnt bad at all before the race i went to. the motor only has 3 gallons through it and hasnt run over 240 EVER!

Have you changed out the glow plug. I would check that first.

try sealing the engine too

Did it hit it's breakin point and just need to be re-tuned?

+1 retune......

change the plug and retune

Think you should sell it. I'll take it off your hands for cheap :lol:
Seriously sounds like a tuning issue though..if you said it dies when it gets hot I would think otherwise. Usually that's a compression issue. Idle up and see where you get. Also you might have to fumble with the low end.

check plug, replace if bad , turn your idle up to get it running and retune the engine .

If anyone would know it would be Monty the Great Motor Man

its leaking oil and gas out of the bottom of the head and going up the button and leaking out..would that be a busted shim?? or a button issue?

BUMP, any help?????? would be greatly aprecieted!

If it still has some commpresstion? tear it down,clean it up, seal it up, re-set it to break-in settings and go. Take a close look at the o-rings on the needles, and fresh fuel lines, new glo-plug, and you should be all set. Or just break out 2-3 hundred and buy a new one. Me, I always go cheep first,then blow the flow. Or you could send it to one of the motor guys on here and let them do it.:tire::tire:

take the motor apart.. its ez

and just go over everything

Have you checked to make sure they are tight? Screws do find away to come loose.

loose head or plug most likely