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  1. Inner cylinders don't fire

    Motorcycle Repair
    Hi, my 1985 Yamaha Maxim XJ 700 isn't running well. The outside two cylinders are firing but the inner two don't. I've sanded and exchanged the spark plugs but nothing changed. They were all running last week until I changed the oil and hosed it down. Suddenly, I have trouble. I've read...
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