flaming exhaust

[ida400ex]

this saturday me and my buddy went riding at the st anthony sand dunes. his 05 yfz was running great all day. he has a ironman s/o and a k&n. we rode for about 3 hours and stopped to take a break. when he went to start it, it just turnred and turned but wouldent start. he let it set for about 5 min and tried again. this time about 2 feet of flames blew out of his exhaust. :eek: it fired up a minute later and ran like a chap the rest of the day. i have never herd of this happening. what would cause this. any help well apreciated.

[YFZ#426]

could have possibly jumped time. you may have to pull the valve cover of and check the timing marks.

[yfzrider45]

That was the coolest thing you've seen right?! This happen to my buddys 06 yfz in the state forest after we took a break to see where we were...It happend a month ago and he didnt change anything on it since so i dont think its somethin to worry about....

[400exrider99]

i timing chain may have jumped a tooth

i've seen this happen but on a little polaris phoenix long story but i'll cut it short not because of timing but my brother accidentally put straight race gas in it 107 octane or something in a stock 200cc quad. well it shot out 1 foot flames all night, like there was almost a constant flame it was hilarious

[the Z Man]

May have hit the throttle by mistake and dumped too much fuel in the cylinder...?

[400exrider99]

Originally posted by FoxHondaRider
i've seen this happen but on a little polaris phoenix long story but i'll cut it short not because of timing but my brother accidentally put straight race gas in it 107 octane or something in a stock 200cc quad. well it shot out 1 foot flames all night, like there was almost a constant flame it was hilarious cant be that because, the quad ran great before the break/stop