saopm
Active Member
Is there a certain cylinder that fouls or is it random? My plug fouled on cylinder #3. I also wonder if winter fogging is a factor.
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Just an update.....My fouled plug was the result of a bad/clogged fuel injector. Back to full RPMs....what a difference.
How did you determine you had a bad/clogged injector? What did you have to do to replace or clear it?
Swapped wire, coil, and injector over to the starboard engine and the problem followed. Next ride out I swapped the wire and coil back and the problem stayed with the starboard engine. Replaced the injector and performance returned. I'm going to see if I can clean the bad injector to keep as a spare. Overall not too hard to replace. Release the fuel pressure, unplug a few connectors and unbolt the fuel rail. There is a clip that holds the injector to the rail. Just neen to work it off with a screw driver.
Swapped wire, coil, and injector over to the starboard engine and the problem followed. Next ride out I swapped the wire and coil back and the problem stayed with the starboard engine. Replaced the injector and performance returned. I'm going to see if I can clean the bad injector to keep as a spare. Overall not too hard to replace. Release the fuel pressure, unplug a few connectors and unbolt the fuel rail. There is a clip that holds the injector to the rail. Just neen to work it off with a screw driver.
So I replaced my plugs on my starboard engine with no joy. I'm still no quite sure what process you used to get down to the specific cylinder that had the clogged injector.