"I have a 70 hp evinrude 1977
"I have a 70 hp evinrude 1977 and a 90 hp force 1995, both of them are doing same. they start slipping after you go past half throttle, the evinrude just did it today, I have been told it is probally the prop spun out, but i havent hit anything on the evinrude to spin it. last time i went out it was fine, but i changed the oil in the lower unit can wrong oil do this? its not clicking when they slip either. I read something in a manuel about the exhaust diffuer being bad could cause bubbles around prop but just thought i would see if someone could help."
"I have a 70 hp evinrude 1977 and a 90 hp force 1995, both of them are doing same. they start slipping after you go past half throttle, the evinrude just did it today, I have been told it is probally the prop spun out, but i havent hit anything on the evinrude to spin it. last time i went out it was fine, but i changed the oil in the lower unit can wrong oil do this? its not clicking when they slip either. I read something in a manuel about the exhaust diffuer being bad could cause bubbles around prop but just thought i would see if someone could help."