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Yamaha 90 troubles

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  • Yamaha 90 troubles

    I have a 2005 Yamaha 90 2 stroke that has been giving me trouble. It had set up for about 6 months was rough running and developed idleing problems. I could feather the throttle and get it up to speed. Anyhow I pulled the carbs and went through them except for the pilot screws(I don't know how to remove the brass plugs). Motor seemed to run on the hose ok. Today I took it out for a run and..... Won't idle, stalls on pushing the throttle. Will run mid range to high speed but seems to lack low and midrange punch. At home I cranked it on the hose and pulled the plug wires one at a time. Bottom cylinder not fireing on idle. Help I'm very frustraqted.

  • #2
    Sounds like still have plugged jets or passages in carb. Try cleaning carbs again.
    Regards
    Boats.net
    Yamaha Outboard Parts

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