5hp mercury 2stroke stops

5hpoutboard

Cadet
Joined
Jan 25, 2009
Messages
10
i have a 1992 mercury 5hp. it ran really well but it has started to just stop when yo go over 1/4 throttle, sometimes it goes for an hour some times for 1 min. i was thinking it was the fuel pump but it has just had a carb kit. also what does the tube do that goes from the bottom of the crank case to the top of the cylender do??????????:confused:
 
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