2008 Mercruiser 4.3 L/H alpha not starting and backfiring out the carberator.

porscheguy

Chief Petty Officer
Joined
Jan 17, 2013
Messages
441
Go back a double check the wires. Check them again after that. Grab each wire and follow it from cap to plug to verify they?re on right. It seems easy enough to say ?I changed them one at a time? like you did. The only thing easier is to make a mistake. Been there done that in my Porsche several years ago. Stupid me gave it a small shot of ether with two plug wires mismatched. Sent part of the intake manifold flying across the garage.
 
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