Recent content by David Jamison

Thanks for the info. I have a boat mechanic scheduled but summer is more than half over where I live in CO. Everyone's too busy these days.

How did you determine your injectors were clogged? I have 2006 twin Mercruiser 8.1 Horizon 496. Ran fine last fall. Started right off the dock this spring in guardian mode. I had shift gear alarms on both engines. Replaced shift switches. Alarm stopped but it is still in guardian mode. I bought...

I also replaced fuel filters in both engines.

I bought this last summer. So 12 months owned. It worked fine last fall when I took it off the lake. The problem started as soon as I put it in the water this summer. I replaced both shift switches and problem still there. Changed oil in both engines.

I have a 2006 340 SeaRay Sundancer with twin 8.1 Mercruisers and Bravo 3 drives. My engines will not go above 1700 rpm and 2400 on the port. It had a shift switch alarm and I replaced both switches but its still in the guardian mode. Does anyone have any idea of what might still be causing this...