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Dec 12, 2019 #1
P
pwelch870
I have a Craftsman lawn mower with a 16 hp Kohler engine that is backfiring through the carburetor. Any suggestions on what is causing this?
Dec 12, 2019 #2
B
bertsmobile1
Either the timing key in the flywheel is broken or the inlet valve is not fully closing
Dec 12, 2019 #3
Russ2251
...possible bad plug or lean fuel/air mix as well.
Dec 19, 2019 #4
M
mikebarber
If exhaust is restricted a bunch you will get a carburetor backfire because some of the exhaust stays in the engine If the Kohler 16hp is overhead valve I would pop a valve cover and check valve action Check both valves when you have cover off
Dec 20, 2019 #5
R
Rivets
If it would be a Kolher Courage engine I would be looking at either valve clearance and/or timing.
