Hey I have a 97 Evinrude 130. Two weeks ago my engine starting shaking at 2400-3000 rpm ( noticed it after hitting another boats wake a little hard. I took it out the other day and it ran fine at idle up to 2400 rpm, and fine over 3000 rpm.
I can cruise at 2200 rpm and it seems fine, as soon as I go over that it starts to shake. Without touching the throttle RPM would increase to 3000 for a few moments, then back down to 2400 for a few moments etc. Powering about that I could bring the throttle up some, engine increases to 3000 rpm, a moment later its increasing itself up over 4000 and runs fine.
I checked the plugs they arent fouled, only one looked pretty wet. The intermediate orfice on the carbs are right there when you pop off the silencer, so I looked at those and they weren't blocked. Checked the fuel for water, filter was clean.
Does it sound like I'm losing a cylinder?
Thanks for any help!
I can cruise at 2200 rpm and it seems fine, as soon as I go over that it starts to shake. Without touching the throttle RPM would increase to 3000 for a few moments, then back down to 2400 for a few moments etc. Powering about that I could bring the throttle up some, engine increases to 3000 rpm, a moment later its increasing itself up over 4000 and runs fine.
I checked the plugs they arent fouled, only one looked pretty wet. The intermediate orfice on the carbs are right there when you pop off the silencer, so I looked at those and they weren't blocked. Checked the fuel for water, filter was clean.
Does it sound like I'm losing a cylinder?
Thanks for any help!