Mercury 9.9 2 stroke won't start

DylanMarr

Recruit
Joined
Apr 5, 2023
Messages
1
Hi guys ,new to the forum here.
I have a Mercury 9.9 that has fuel,spark and compression yet won't run.instead of pulling like crazy I've taken the pull start off and spin the flywheel with a drill and socket.through this I've found that every once in a while I'll hear a pop and see a poof of smoke from both the carb and out of the lower end.does anyone have any idea what this could be?
 

racerone

Supreme Mariner
Joined
Dec 28, 2013
Messages
37,829
Check flywheel key.----Or perhaps switch plug wires.-----And does spark jump a gap of at least 5/16" , yes or no ?
 
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