My son has a '79 Honda xr 75 dirtbike. It boggs when throttling over have its limit, half throttle to full open. I am out of ideas, can anyone help. I replaced the sparkplug, cleaned out the carb and even restet the valves. Compression test was good and the main jet is clear.Thank you for your time and any sugestions.
Dirt Bike boggs Please help ! ! !?
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