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50hp 2001 mercury 4stroke missing high speed

bitsy4643

Contributing Member
50hp merc 4 stroke carb, 210 comp all four cylindrs wot.. When cold, slow to start, afterward starts right up, idles and runs great to mid rpms, then drops #2 cylinder. Firing indicator on number 2, shows good spark at high speed. Carb is clean and jets clear, accelerator pump functioning as should. Any help appreciated. Thanks
 
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