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    How do I do a tune up on a 1989 Johnson 25HP?

    Hi all, I am new to boating and wanted to do a tune up to my 25hp motor before I take it out for a run. What is needed and how do I do it? What fuel/oil mixture should I use? Also is it possible/practical to convert the motor from pull start to electric start? Would it be expensive? Thanks for...
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    1989 25HP Johnson Backfires and Prop does spin - Help?

    Hello all, I have a 1989 25hp Johnson Outboard (Model: J25RCEM) that backfires when I throttle it up. I changed the plugs and still doesn't fix the problem. Could it be the fuel/oil mixture? Also the prop spins very slow. What do y'all think it could be? Thx Edwin :confused:
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