Plug Gap and Pinging?
Carb cleaner can do a little bit of help for the intake track, and the TB.. but it wont do too much for the combution chambers themselves. Best way to clean that out is with top engine cleaner. I used to take all the plugs out, and use a funnel to pour it into each cylinder, then into the TB, and crank it over a few times... then let it sit overnight and start it up. It'll smoke up the streets... Be sure to change the oil immediately afterwards...


