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Discussion Starter · #1 ·
At low speeds and low throttle, the engine on my 2000 Foreman runs fine. However, when I hit the throttle, the engine will "bog down", lose power, and the exhaust noise will be muted or muffled. After letting off the throttle, the engine will recover to normal power and the exhaust sounds normal again. Any ideas what causes this? The atv had not bee used for about 6 weeks before this problem showed up. Even before this problem, the exhaust would emit a loud sharp sound when the throttle is released. Are the problems related? Help!
 

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Welcome to the forums. I would look back in the exhaust and make sure there's no wasp nests or dirt dobber nests in it stopping it up and also look in the airbox and rubber piece that hooks to the carb. Next, try cleaning the carb and go from there.
 

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agree ^^^^..and if it's been sitting that long..get some fresh gas...i would pull the carb..and clean the jets..sounds like high jet is stoped up with junk...unless it's fuel injected ??..lol..sorry..i can't keep up with all the models that have fuel injection..lol...i'm getting closer to allthetimmers..lmao.
 
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