I have a 1990 Force 90 hp outboard with low compression in one cylinder.
The engine still runs, just poorly, but I'm hoping it's just pistons, rings, wristpins, bearings, gaskets, etc, and possibly a bore or honing, then rebuilding and cleaning the carbs.
I am also toying with doing the job myself...i have never worked on an outboard before, but have done many top end jobs on motorcycles, and lots of auto experince, and have all the tools, i.e. flywheel pullers and torque wrenches.
My alternative to rebuilding is installing an 1970's 100 hp Johnson I have to replace the Force, but even that would cost me several hundred between help with wiring (which i am not good at), tune up, and whatever else it may need...It's been sleeping for 6-7 years. I'd rather try and save the Force, because it is newer and has power trim.
So my question is, approx how many hours of shop time would I expect to pay to rebuild the Force and approx how much for parts, provided I don't get into anything too unexpected. It sounds like this is a super common problem.
Also, a recommendation for a good brand of shop manual for rebuilding would be appreciated.
Thank you in advance...I'm glad to have found this great site!!
PS...i just found a used powerhead for my motor for $500, with COMPRESSION READS of 142/147/146, so there's yet another option for me.