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  1. 4

    '77 Johnjon 55 cooling problem.

    Hello everyone! I just bought a small boat with the 55 on it. I ran it today with the muffs on the lower unit where the steel mesh is covering the holes. It fired right up and ran super, but it did get too hot for my liking, so I shut it down after about 1-1 1/2 minutes. There was a stream of...
  2. 4

    rich idle

    I have a simple question. If the idle circuit needle should be open 1 1/2 turns on a 10 hp, will running it way too rich, say 5 turns out, make it backfire quite bad cold and to a lesser degree warm? thanks
  3. 4

    Tillotson carb adjustment

    Can someone tell me how to set the Tillotson model CO7b Carburetor 1976 10 HP? I only see one adjustment screw. This is what it is doing. If I Idle it, it runs good. It will surge at full throttle. But if I give it a bit of choke, It gains power noticeably. Seems lean to me. Please also note...
  4. 4

    crank case sealant?

    First of all, I have to say that I am impressed with all of the help that this forum gives to all boaters. I have enjoyed reading through it for days now. On to business. I just bought a 1976 Chrysler 10 HP outboard for my 12' FG fishing boat that my son and I use together. My 1955 Fleetwin 7.5...
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