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  1. J

    Will decarbing also clean varnish?

    I have read many posts about removing carbon using Seafoam. The "recipes" for decarb include adding 3/4 can of Seafoam to one gallon of premixed gas, and, using the remaining 1/4 can squirting a shot in the cylinders and spraying the rest down the carb throat till the motor almost stalls. Then...
  2. J

    How do I set timing?

    The service manual for my 1971 Johnson 9.5 calls for the use of a special tool that mounts on the crankshaft. There are timing marks on the armature plate this tool aligns with. Is there a way to set the timing without this tool?
  3. J

    Running motor in a tank

    I have always adjusted my 9.5 Johnson on the boat and in the water. To run it in a tank, is a 55 gallon drum the minimum I should use? What do you typically test outboards in?
  4. J

    Boat Leaks

    I have a Starcraft aluminum fishing boat. It has developed a small leak at a rivet. It is under the seat and difficult to get at. Is there a way to reseal or plug a leak at a riveted joint?
  5. J

    Why replace my Impeller?

    I have a 1971 Johnson 9.5 that has net been used for 5 years. It ran fine last time it was out and is used in fresh water. I have been advised to replace the impeller as well as do a general tune up. Why is it important to replace the impeller?
  6. J

    Should I rebuild my 1970 9.5 Johnson?

    I came across a 1970 Johnson 9.5. It has not been used for 5 years, only 3 times a year prior to that and has been garaged. It is used in fresh water. I know quite a bit about car engines but have never torn into an outboard. I plan to get a service manual, but want to know if I am in over my...
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