Cheap Engineer
Member
I've been chasing a problem on a '96 Speedster and I just did a compression check and I think I found the problem. On my port engine the mag cylinder is reading 150 while the PTO is reading 120. I've done the test a couple of times now and it comes out the same. Could this cause the engine to run rough and not be able to make full power? I rebuilt the carbs and the engine starts right up, but has trouble making power in the water. If I turn right and get the prop out of the water the engine rpm's come right up.
If the compression is a problem it looks like new piston rings are in order. I've done the carbs and wear rings on the boat. How hard is it to do the piston rings? Any special tools needed? Anything else I should replace while I'm in there?
Thanks,
Carl
If the compression is a problem it looks like new piston rings are in order. I've done the carbs and wear rings on the boat. How hard is it to do the piston rings? Any special tools needed? Anything else I should replace while I'm in there?
Thanks,
Carl