MarineEngine.com does not offer troubleshooting assistance or repair advice by email or by telephone.
You are invited to join our public Boat Repair Forum to seek assistance from other members.
You may also visit the Boat Motor Manuals section of our site to obtain a service manual.
MikeThanks for taking a the time to reply to my post. I'll try a set of plugs in it and see how it goesIt is possible that the wave hit the exhaust relief on the back of the motor and forced some water into #3 or most likely #4 cylinder.If you are still having an issue in smooth water....the first thing I would do is check the compression on all of your cylinders and check your spark plugs. If the compression is good (within 10% on all cylinders and around 199 - 208 psi....with e throttle wide open), then change the spark plugs with NGK ZFR7F. They are not that expensive. Unless there is some mechanical issue with the engine, the biggest problem that the 115/130 has is it needs good fresh fuel and good spark plugs.Mike