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    1961 Johnson Sea Horse 75hp cleaning engine block behind exhaust manifold

    I've got the manifold off to replace the gaskets and the gunk is really built up inside.....Is it ok to spray cleaner in there? Also, the plate in there is bowed ....Is that servicable. thanks I'd like to post a pic of the block if I can.
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    What to use for cleaning carbon and gunk out of heads?

    What's the best thing to use for cleaning the carbon residue and gunk off the inside of these aluminum heads? Thanks
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    1961 Johnson Sea Horse 75 hp water pump

    What's a whole new water pump consist of on this model? I've been having overheating probs and it's been suggested that I put in a whole new pump. I just replaced the impeller. It's hardly been used. I did not replace the housing though. Just was wondering. thanks
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    1961 Johnson Sea Horse 75hp Points Set

    Thanks for all your advice on adjusting the points. I got her in the lake again this weekend. She started up like a dream. All pistons firing and right in time too. I'll try not to hurt my arm patting myself on the back. lol. Anyways, I took the vernatherm out but not the stat because I'm...
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    1961 Johnson Sea Horse 75hp V4SL-13 adjusting and setting points

    Ok I've got the tune up kit. Got the points and rotor. The manual says to adjust the points at the highest point on the cam to .020" However, I haven't found where it says exactly how to adjust them. Any pointers would be greatly appreciated. (No pun intended) lol....thanks It's a...
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    1961 Johnson Sea Horse 75hp distributor cap pitted.

    Mechanic looked at my engine last weekend. We found out it's only sparking on 1 and 3. No spark on 2 and 4. So I've got the tune up kit on it's way ..new wires and rotor. However the cap is pitted a bit. How much pitting will cause me problems?....Because, as anyone knows with these the cap...
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    1961 Johnson Sea Horse 75hp V4SL-13 overheating after fifteen minutes idling

    Got the boat in the water again this weekend. Figured out why it was dying on me. The choke was set to on. Duh huh!! Started like a dream again. Let it warm up and turned the choke off. (I'm not sure if the automatic setting is working so I set it to off to keep it running.) It kept...
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    1961 Johnson Sea Horse 75hp won't turn over now

    Well I got my boat in the water this weekend. Just did an impeller change. All went well. Started up immediately and purred like a kitten. Pump working... I checked to see if it would go in gear, forward and reverse... it did. So, I thought I would take her for a spin. Backed out about...
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    1961 Johnson Sea Horse 75hp V4SL-13 checking overheat light

    How do you check to make sure the overheat light on the dash is working properly? Thanks
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    1961 Johnson Seahorse 75 hp V4SL-13 Re-installing Lower unit after impeller change

    Got the manual. Selog's. Did the impeller. I'm trying to get this thing back in by myself. So, needless to say it's a little awkward. I get the shaft up and in and then it's stops about 1/4 of an inch from all the way in. I can see the shift rod and the connector through the access. It's...
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    Driveshaft doesn't pull up easily on 1961 75hp Johnson Electric Seahorse

    When I got to the step to pull the driveshaft it's not coming out very easily. It seems the bearing is in very tight and a little rusty? Am i just being a wuss? I thought about using some penetrating oil. But, it's pretty close to the gearbox. Also there is a lot of play about 1/2 inch or...
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    Scoring and burrs on driveshaft 1961 75 hp Johnson Electric Seahorse V4SL-13

    When took the lower unit apart and disassembled the water pump the driveshaft had some scoring and a few burrs causing the top of the pump housing to snag up and not come off. Any ideas on what might cause this? they are about two thirds up the shaft. Thanks. I hope i didn't trash the top...
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    V4SL-13 Flooding Out

    My oldie but goodie keeps flooding out when I try to start. Am I priming too much?. Also put a mix of 50:1 in but now found out it' specs call for 24:1. I thought that I'd add some gas to the tank. I only put 3 gallons in just to see if the thing would start. It started rough but then...
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