View Single Post
Old 05-13-2010, 03:23 PM
Fabian Fabian is offline
Join Date: Sep 2009
Location: Australia - Melbourne
Posts: 168
Default Re: What does this spark plug tell you?


You haven't provided enough information about the running conditions of the engine and the type of fuel used and the oil/fuel ratio.

Was that plug pulled from the engine after light throttle use, or after idling for some time, or coasting downhill or wide open throttle?

Mixture analysis cannot be determined unless all these factors are known.

Reply With Quote