lundi 27 juillet 2015

Repairs kohler cv15s runs about 20 mins and backfires and stalls

hi i have a john deere with a 15 hp command engine mod.# cv15s it backfires and stalls let sit a few minutes and it restarts.?
I've changed fuel filter
also put a new carb. on it
replaced the spark plug
it seemed to be fixed i ran it for 3 hrs and it ran fine. About 3 or 4 hrs. i had to move it out of my shop to get another mower in as it was idling its stalled again when i got it back in my shop it started backfiring an wouldn't start it had plenty of spark. it sat a few mins. and it started up like nothing was wrong? i have never come across this problem can anyone help me? someone said its the hydraulic lifters sticking but i'm not sure
CAN ANYONE HELP ME OUT?
thx
kevin


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