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:motz:I think i have a 92 polaris trail boss 350 liquid cooled 2x4 and its running way rich after i had the carb rebuilt i watched the guy rebuild it and there were no parts left over the bike sat for acouple year not really rode it starts and idles ok but when u give it gas it spudders till it cleans itself out then itll go wide open then die let off a lil and itll go wide open again i need help on how to adjust the carb so i can go ride it
 

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Welcome to the board!:med:
 

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The off idle stumble can be cleaned up with the mixture screw. Try turning it in or out 1/2 turn and see which way makes it better. Keep going in as little as 1/8 turns till has the best throttle response. As far as the dieing after you run full throttle a ways, it sounds like it's running out of fuel. That could be the float level set wrong or a weak fuel pump not keeping up.
 
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