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    9.9 fourstroke water problems

    2002 9.9 fourstroke water pumps to the thermostat but not out pee hole. Hoses to pee hole seem clear. Any ideas?
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    Performance trailer?

    We bought a boat and trailer in Florida and imported them into Canada in 2007. We had all the required documentation to clear the border. Registering the boat was no problem. The problem is registering the trailer in British Columbia. When we took the boat to Canadian Tire for inspection we...
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    Silvertip/carb - Good News!

    Cleaned the top carb. Put the boat in the water. Idles better but not great but the good news is that it runs up to wot 5200 to 5400 rpm with no problems. Runs smoother and quieter than ever. Thanks again! I've pulled the two other carbs out and am soaking them now. I still have questions about...
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    Silvertip/carb

    Lets try again. Too much technology and not enough time.
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    Silvertip/others carb assembly

    Thanks again for your advice. (cv85 fuel problems). When I took the top plate off the carb the large centre opening had only a rubber disk in it, the large opening to the right had a rubber disk and a metal disk. When I reassmble the carb I used the attached diagram which is opposite from what...
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    1990 CV85 fuel problems?

    We have a cv85 that is acting like its starved for fuel. Starts easily, idles a little rough but will idle for hours no problem. It will run up about 4500-4700 rpm okay. Increasing the throttle will cause it to drop rpm.. Squeezing the bulb will not change anything. While on the water we...
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    1993 Mariner 15hp

    Engine starts fine but idles rough engine misses then puffs blue smoke through the exhaust. I ran Seafoam through it and the puff stopped during idle but returns if you advance the throttle linkage. Today I noticed a small puddle of black oily liquid that dripped from lower exhaust out of the...
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    1990 85 hp Yamaha

    This motor starts fine and runs great for about 10 minutes, then the rpms drop to 2500-3000. Shutting the engine down and waiting for 10 minutes cures the problem until the engine has been run for another 10 minutes. Any ideas where to look? Fuel - ignition - cooling system? I know a bit about...
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    1990 85 hp Yamaha

    My son is looking at a used boat with a 1990 Yamaha 85. The engine started and idled fine, ran good under load for about 40 minutes, we stopped about 2 miles offshore for about 10 minutes to run on the kicker, the Yamaha 85 was then restarted (mo problems), however it seemed a little rougher on...
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