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What is the mix ratio for a Johnson outboard motor?
Any Johnson outboard motor built since 1964 requires a 50/1 fuel ratio. Motors built prior to that date require a 32/1 ratio, with the exception of a few fishing motors built prior to 1955 that use a 16/1 ratio.
To get the year of Johnson and Evinrude outboards use the word "INTRODUCES". Each letter corresponds to "1234567890" respectfully. It's best to check with a model year reference book, but this motor's model number contains "CC" which would indicate it's a '88.
most 2 stroke motors will not burn all the oil in the mix and that unburned oil coats the exhaust leg and leaks out the thru hub exhaust and parting line of the lower to the housing. so keep some windex handy and clean it up.
Take the cowling off. Also drop the foot. There wil be a stainless linkage rod that runs the length of the motor that you will have undo to drop the foot. The water impeller will be inside a stainless casing that you will have to disassemble.
I have 1969 5hp Johnson. Starts and runs good, but will only push a 14ft row boat slow at low to medium rpm. When at higher rpm the the motor just revs up and the boat slows down to almost nothing just like it has seaweed around prop.Any help would be great.
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