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Discussion Starter #1
I’ve been using my atv for the first few times this season and has been running great after changing all the fluids and spark plug. While riding I noticed an extreme lost of power and it stayed that way. The atv starts up fine and idles fine, I keep it around 1200- 1500 rpm during idle. Now when I press the throttle I here a sputtering and the atv only goes 15 to 20 mph. It doesn’t matter if it’s 1/4 throttle or full. The engine is running around 4000rpm when I’m doing around 15mph. The engine revs up fine to high rpms.

Any suggesting or things to check?
Air intake?
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