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Honda MX & Off-Road Dirt Bikes
i have a problem, need help
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[QUOTE="killer454, post: 1410647, member: 121317"] i have a 04 honda cr 125r with pro cuircut header the rest is stock. i just rebuilt the top end. i had a steel sleeve put in it. the stock piston i took out was oem and it was a flat top piston and i replaced it with pro-x piston and it has more dome shape. it idles perfect but when i crack into the throttle all the way it bogs down (if its at idle and i snap the throttle to all open it boggs). if i ease threw the throttle, no bogging and it hits powerband and runs perfect.in neutral it revs from idle perfect,but when under a load in gear it will bogg off idle but if i hold it their it will bog and then rev fine once in the powerband. i adjusted air/fuel srew a hundred times and the carb is clean. still boggs off idle. the plug is tan. keep in mine im running stock jets and its 40 degrees outside right now in missouri. i think i need to rejet because of the header but have no idea which way to go. could anyone please help me? [/QUOTE]
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Dirt Bike Discussions By Brand
Honda MX & Off-Road Dirt Bikes
i have a problem, need help
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