1998 Evinrude 175 bad shaking at 2500. Any help would be appreciated.
Was told it was the bent/beat up prop, I put a new one on. Shaft is straight and no gear issues. Then told it was the water pump. I put a new one on. There was some sand in the impeller area so I thought maybe that was the issue. Took it out last night and it does the same shaking at about 2500 rpm’s. When I first start it, I can get up to about 3500 rpm’s before it starts happening. Then it continues to do it around 2500. Shut it off, turn it on, it lets me hit 3500 again, but then shakes. Do you think it could be the fuel filter or fuel pump causing this? The motor mounts are solid also.