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Old 08 August 2012, 07:01   #1
Country: UK - England
Town: portsmouth
Boat name: patch
Make: avon sr5.4/4m
Length: 5m +
Engine: mercury 90/honda 30
Join Date: Oct 2008
Posts: 260
Yamaha 30hp 2stroke misfire

Hi hope you can help once again, I have a mid nineties 30hp yam that starts and runs better than any motor I've had (on idle that is) but as soon as you bring up the revs to over 1200rpm she misfires, I've tried pumping the fuel bulb as she's running but no different, she had a full rebuild last year and new fuel pump!! Any ideas ????? Cheers tim
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