I was on the river this weekend with my 1984 Johnson 35hp to see if I adjusted the linkage correctly. It shifted in forward and reverse just fine. I tried to bring my boat up on to plane and it sounded like I hit a log. The engine reved high and I noticed that the shift lever was back in neutral. I popped it back into gear and tried to plane the boat out again and same thing. There is no grinding or chattering. It slips smoothly back into neutral before it revs out. Could it be a spun prop, bad linkage adjustment, or clutch dog and gears. Any tips.
