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    Mercury 9.8 won't start cold

    I have a 1980 9.8 hp mercury which hadn't been used for several years. I rebuilt the carb and fuel pump, replaced the impeller, thermostat, and spark plugs, and changed the lower unit lube. The motor runs great as long as I start it by squirting gas into the cylinders. It also starts great...
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    Sour fuel?

    I have a 1979 6 hp Johnson (model 6R79E) which I have run every week all summer for 10 years with no problems. This spring the engine starts on the first pull, but stalls when I put it into gear and accelerate. I rebuilt the carb. The spark plugs are new. The problem is still there. I...
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    Thermostat is missing

    I recently acquired a 1980 9.8 hp mercury, serial no. 5711241. The motor had a fried power pack, which looked as if it had gotten so hot at times the wires were essentially fried, brittle and broken. I replaced the power pack. I then found the thermostat is missing. I have replaced the...
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    1980 9.8, check valve problem?>?

    I have a 1980 9.8 hp mercury. It starts fine but after a short time stalls. If I disconnect the fuel tank connector and wait awhile it will start, and then stall again. The carburetor has been professionally rebuilt 2X. The fuel tank is venting fine. I am thinking this is a vacume problem...
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