Home › Forum › Ask A Member › Compression check question › Re: Compression check question
June 22, 2015 at 1:55 am
#18647
quote Chris_P:
quote legendre:
The carb should always be held at WOT for a compression test, which is not all that different from not having a carb at all..
Actually for our 2 stroke outboards throttle setting is totally irrelevant for a compression test. Hold it at no throttle, half throttle, full throttle, doesn’t matter.
I can’t see any reason a 2-stroke OBM would be any different, but I’ll defer to your experience for now.
But let me ask this – what kind of compression reading does your OBM give if you +plug+ the carb inlet(s)? How does that plug differ from a fully closed throttle plate?