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So pull the lower unit and disassemble? It's still pumping water well if that matters.

I got this motor running well, and took it out to test on the water this morning. Ran great, got up on plane, etc etc for about an hour, then all of a sudden the boat came down off plane and then the motor quit pushing the boat. I got towed in, and now when I put it in gear I can hear a little...

1968 Starcraft Jet Star 15 with 1987 Johnson 25hp. Just brought it home yesterday, installed a new water pump kit in the motor this morning, and took her for the first test ride this afternoon. I would like to restore her, but that'll have to wait until after fishing season....

I have a tiny leak in the gasket in my 3gal pressure tank. Is there something I can put over it to seal it until I get a replacement gasket? The leak is so small that I can stop it with my finger...

I've been mixing at 1 pint per 3gal tank (actually a little less than 3 gals) which should be about 24:1 Is there a particular brand of oil that's best for these motors? I've been using the walmart stuff, TCW3 compliant This motor gets a lot of use, nearly every day fishing in a saltwater tidal...

dont store your motor horizontally, its motor abuse!! also inspect the gears to see if they are rounded or really worn.... Awesome, thanks for the advice. I'd always thought storing a 2 stroke horizontally was ok- I'll keep it on the motor stand from now on. Is improper storage what caused it...

I have a 1969 Mercury 7.5 HP that runs strong, but has a couple problems. It doesn't spit very much water from the telltale, and I have already replaced the impeller and checked the telltale line with a piece of wire. It doesn't overheat, and I've been using it daily for about a month like this...

I seem to have a small leak of oil from the shaft by the prop when the motor is stored horizontally. What kind of oil should be in there? How hard is it to replace the seal, and are they available?

I can't speak to the transom replacement, but I can say that 9.9hp is plenty for your boat. I have a 12' sears semi v, and a 7.5hp motor, and it's fine. And I'm running in a tidal river and John's Bay on the coast of Maine. I think you'll love that 9.9!

Just wanted to introduce myself. I recently acquired a 12' sears semi-v and a 1957 Evinrude 5.5 fisherman. Boat is in ok shape, will do fine for this season, but will get some work over the off season. Also have a 1969 Mercury 7.5 that I traded for, that runs pretty decent, and pushes the boat...