12 hp kohler backfire on shutdown  Sun Jul 24, 2005 9:27 am
Hello All, One of my Cadet's had a recent rebuild ,now when I
shut it down it sound's like a rifle shot ,the shop manager
insist's it's "normal"...Then how come it never did it before
the rebuild? and how come none of my other cadet's have that
problem,to me it sound's like he timed it wrong,if that were the
case would it run?he tell's me it would not,he insist's it's the
carb ,the carb is tight,anyone have a suggestion? I have no
plan's on bringing it back to him,I will have to take care of it
myself. Thank You.  Sun Jul 24, 2005 9:51 am  Timing could be of
by a degree or two. Check with a timing light.  Suggest letting
the engine cool off, idle for a minute or two before you shut it
off. My wife has the engine wound tight then turns off the key.
The engine will pop. I suspect its the unburned gas expelled
from the combustion chamber being ignited in the exhaust
pipe/muffler.   Sun Jul 24, 2005 5:35 pm  One more item to check
after the timing. Make