No prop issues engine is shaking/cagvitating at low to mid range. The filters have all been changed. Problem started slowly. Runs great full rpm and idle. Compression is 114-116lbs in all cylinders.
I have a '97 225 Saltwater Series 2 stroke. I ran it last weekend without a problem. Started the motor up and went 4-5 miles when it cut out around 4200 rpms. The motor shut off ---no alarms, no idiot lights went on----nothing. As soon as the boat stop I tried the iginition and it started...
While winterizing I noticed a large amount of oil mixed with the flushed water on the ground before i fogged the engine. Ran engine to temp. It's a 94 looper 200hp O.Pro. Compression is excellent, idles fine, top end is fine (5500) but mid range is week and rough. I've used tuner with no...