Question about 1991 Suzuki GSF 400 Bandit

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My #1 and #2 cylinders are not firing. I have

My #1 and #2 cylinders are not firing. I have replaced plugs and coils and they still will not fire. I was doing around 90 the other day after a long ride when I had a sudden loss of power. It made it home on two cylinders. any suggestions?

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  • Douglas Hansen
    Douglas Hansen May 11, 2010

    Are you getting a good spark? (Compare all of them)

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Are the plugs sparking. Short them out to the engine while cranking engine to see spark at electrode. If they are not are you getting power to the coils. If they are sparking do they get wet when they are in place in the engine and it is run. Run it for a minute and remove plugs to check. If they are dry you may have a carb problem. If they are wet check the compression on the engine cylinders you may have blown the head gasket between no 1 and no 2 cylinders.

Posted on Feb 05, 2010

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