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Old 04 May 2013, 14:37   #1
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1988 Mercury 135hp v6 Problems after winter

Hi, has anyone done a DIY job on carbs after the winter, I've changed the plugs, filters plus impellor, just gone to try the motor after the winter months, she will run at a high throttle but soon as you engage drive or reduce the rpm it will splutter and die.

I have just noticed that fuel is dripping from the bottom of the carbs at a steady rate, could it be sticking floats etc. or am I best leaving it to a garage to sort. The motor is a 1988 model so I am happy to take it apart if this is a common problem after no use over winter, I must add that it was going well last year when last used. Any tips welcome thanks
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Old 04 May 2013, 18:02   #2
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sounds like sticking floats, or just as likely that the part that presses on the needle valve needs a little tweak, so that the float presses harder on the needle.
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Old 04 May 2013, 18:48   #3
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1988 Mercury 135hp v6 Problems after winter

Maybe carb needle valves or floats are sticking, try tapping carb float chambers with screwdriver handle or something, to dislodge them.
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Old 04 May 2013, 21:25   #4
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Thanks guys I will have a play tomo
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