My 377 started popping and carrying on...not bad but bad enough. Sounds like it does when there is water under the cap.
I checked it is dry. Pulled each plug....nothing no smell of antifreeze.
What might cause this?
My Garage is heated and cooled often and the tank is less than 1/4 full.
Could there be enough condensation in the gas from sitting all winter to do this or something else?
Also changed the coil...still same problem