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1975 johnson 25

A

Akira660

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well i have a johnson 25 i thi

well i have a johnson 25 i think 1975. model number:25rl75b
serial:a141245

its runs good but a bit smokey but its using old fuel still have to change that but i just wanna now some service info and what fuel mixture to use in it stuff like that
 
Fuel mixture is 50/1 (1 pi

Fuel mixture is 50/1 (1 pint 50/1 TCW-III oil to 6 gallons gas).. A octane rating of 87 is okay. Gear lube should be HiVis 80/90w. Spark plugs should be Champion QL77JC4 plugs gapped at .040 .
 
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