Easy tips

Why do the Revs stay high when the throttle is open?

Why do the Revs stay high when the throttle is open?

When I open the throttle and let it close again the revs stay high.. it doesn’t always do it and to get the revs back down I have to either wait for about 10+ seconds or blip the throttle again which sometimes helps but sometimes puts the revs higher. The carb has been stripped and cleaned.

Why does my car rev up when I start the car?

Thank Kevin. Common causes of high RPM excursion at start-up are typically: large vacuum leak, throttle plate stuck open, cruise control stepper motor stuck in one position; faulty throttle position sensor, and/or faulty idle air control motor or solenoid.

Why is my motorcycle not doing a full turn?

Occasionally that screw will become out of place and won’t let your throttle release all the way so your motorcycle will constantly be throttled a little bit. You can usually tell if this is the cause of the problem because the throttle isn’t doing a full turn. Examine your throttle and see if there is a set screw holding your throttle in place.

Why does the carburetor not pull back the throttle?

This is used to spring back the throttle into the idle position when it is let go or released. If that spring on the carburetor gets old or malfunctions, it won’t pull back the throttle to the idle position and also won’t close the butterfly valve inside the carburetor which leaves you in a high throttle position.

Why do the Revs go up when the throttle is off?

As you slowly turn it out it should begin to idle smoother and the idle speed should come up. If you have the correct pilot jet then before you get to 3 turns out on the fuel screw the idle will go up, peak, then start to slow down again. Set the fuel screw near where it idles the best.

What to do if your engine revs too much?

If it moves more than that you have broken the governor inside the engine and will require a tear down. Check the throttle control cable to make sure that it is still connected properly. Page 28 of your owner’s manual describes how to adjust the throttle cable.

Thank Kevin. Common causes of high RPM excursion at start-up are typically: large vacuum leak, throttle plate stuck open, cruise control stepper motor stuck in one position; faulty throttle position sensor, and/or faulty idle air control motor or solenoid.

Occasionally that screw will become out of place and won’t let your throttle release all the way so your motorcycle will constantly be throttled a little bit. You can usually tell if this is the cause of the problem because the throttle isn’t doing a full turn. Examine your throttle and see if there is a set screw holding your throttle in place.

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Ruth Doyle