Out cruising Rauzer II this weekend and once again have the following problem. I am motoring along on smooth water at 2600 rpm when the engine starts varying rpm. It will waiver between 2400 and 2600. Sometimes dropping to 2500 then back to 2600. Then eventually steadying out again at 2600. It has happend before where the maximum rpm it will maintain is about 1800. Increasing the throttle only makes the variation worse. I thought it was the fuel filter in the past, so I would change the filter and it would then run fine for several hours of running, sometimes the remainder of the season then return the following spring. The manual says the filter should be "cleaned" every 250 hours and replaced if very dirty. When I replace the filter, the old one "looks" just fine. So, now I am suspecting the fuel pump may be going bad. Any thoughts or similar experiences out there?
