think ive got a big proble

so i got this kz 550 for trade for an older bike i had he said it ran and it does but only on 3 cylinders i tried spraying gas in the carb of the 1 that didnt work., and it shot the gas right back at me frome my basic understanding of ingines it should be pulling are in right do you think it is posible i could have head damage like a busted or bent valve

matcodude69 wrote:

so i got this kz 550 for trade for an older bike i had he said it ran and it does but only on 3 cylinders i tried spraying gas in the carb of the 1 that didnt work., and it shot the gas right back at me frome my basic understanding of ingines it should be pulling are in right do you think it is posible i could have head damage like a busted or bent valve

Welcome aboard, matcodude69! We're glad you're here!

Would check the valve clearances. Might discover one or more being too tight, especially intake valve on the non-running cylinder. An intake valve which fails to close can spit back through the carb. Maybe adjustments of valve clearances to specs could resolve the issue.

Good Luck!

thanks will check that