art_dodger
New member
"Hey all,
I have a 1992 70h
"Hey all,
I have a 1992 70hp Force outboard on a 17' Maxum that continuously "surges" when under load. If I have any more than a couple of people in the boat, or try pushing the boat through the water below planing speed, the motor surges continuously. If I'm at idle, traveling at low speed, or once I get the boat up to plane, the surging stops and the motor appears to be running smoothly.
It has been doing this for quite some time, so I don't believe it is related to gasoline quality, etc. I just had it pretty much rebuilt last week due to a blown piston - I thought after replacing 2 pistons & having the cylinder walls honed that the problem might disappear but no such luck...
Rather than attempting to describe the surging, I've uploaded a short video to YouTube that I made this morning that gives a pretty clear indication of what I'm talking about - I would sincerely appreciate if someone might provide me with any suggestions as to what might be causing this problem.
The video:
http://www.youtube.com/v/cehqGD-MfG0
Thanks - Dodger"
I have a 1992 70h
"Hey all,
I have a 1992 70hp Force outboard on a 17' Maxum that continuously "surges" when under load. If I have any more than a couple of people in the boat, or try pushing the boat through the water below planing speed, the motor surges continuously. If I'm at idle, traveling at low speed, or once I get the boat up to plane, the surging stops and the motor appears to be running smoothly.
It has been doing this for quite some time, so I don't believe it is related to gasoline quality, etc. I just had it pretty much rebuilt last week due to a blown piston - I thought after replacing 2 pistons & having the cylinder walls honed that the problem might disappear but no such luck...
Rather than attempting to describe the surging, I've uploaded a short video to YouTube that I made this morning that gives a pretty clear indication of what I'm talking about - I would sincerely appreciate if someone might provide me with any suggestions as to what might be causing this problem.
The video:
http://www.youtube.com/v/cehqGD-MfG0
Thanks - Dodger"