![]() Like a vacuum leak, this will result in a lean fuel mixture and a high idle. If the pilot jet is clogged, not enough fuel will be mixed with the air being sent through. The pilot jet is what draws fuel into the engine when idle. Carburetor cleaner is highly flammable and if it touches a surface hot enough, it could ignite. This test can be completed with carburetor cleaner as well-however, exercise caution when doing this. Replace any tubes and connectors that are leaking air. If you hear the water getting sucked into the engine or the idle changes, there is probably a vacuum leak. Spray water over the manifold and carburetor. Ensure the vacuum sensors are not damaged. If you still have not located the problem, inspect the manifold and carburetor for visible problems. If there are no visible issues with the intake system, use a vacuum tester to inspect the integrity of the connections. Inspect the intake system for any visible issues or damages. ![]() A lean fuel mixture will also make for a jerkier ride than normal. This “lean” mixture can damage the engine as well as make it idle higher. If the seal between the carburetor and the engine is compromised, it may be allowing extra air into the fuel mixture. If the ATV is idling high, it is likely related to an issue with the carburetor. Check your owner’s manual to learn the exact idle speed your ATV should be at. Newer ATVs idle somewhere between 12 RPMs. The exact speed your ATV should idle at will depend on its age, make, and model. If there is an issue with the carburetor, your ATV engine may be idling at a higher than normal rate. The carburetor is what supplies the air and fuel mixture to the engine to keep it running. This article will explain the reasons your ATV may be idling high and what you can do to fix it. Allowing an ATV to idle too high could lead to premature wear and tear.Ī higher than normal idle does not mean that you have to put an end to your day on the trails. An ATV idling high should not be left unresolved. ![]() Among these reasons are a carburetor leak, throttle cable placement, idle screw setting, clogged pilot jet, and many more. There are many reasons an ATV may be idling high. What could be causing it, and how do you fix it? You start the ATV, and you hear it idling higher than normal. You are getting ready for a ride down your favorite trail.
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