How To Adjust Motorcycle Throttle Freeplay?

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How much play should motorcycle throttle have?

Most motorcycle manufacturers recommend about 2 to 3 millimeters of throttle free play, but over time the cables will stretch and settle into their housings and you’ll end up with more slack.

What is Throttle free play?

In simple words, throttle free play is a short bit of movement at the beginning of the throttle twist that has no effect. That free play allows you to bring the throttle open smoothly, and gently. It simply acts as a dead zone just like you start pulling a rope from one end.

How can I make my throttle more responsive?

Aftermarket throttle bodies are trying to increase both size and speed. More air volume and speed is a surefire way to increase horsepower and throttle response at any given RPM. It is easy to achieve this at high RPM when the engine sucks in substantial amounts of air on its own.

Why does my throttle get stuck?

A sticky throttle could be caused by worn cables, lack of lubrication in the cables or the cable getting bound up somewhere in the mechanism. Or it can be caused by an issue with the carburetor or EFI. If the screws in the throttle housing are too tight it could cause the cable to stick.

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How tight should throttle cable be?

the bracket on the intake manifold the throttle cable should have 2 nuts that you can turn or loosen to adjust the tension. About 10mm of slack in the cable is recomended by Honda. It’s always nice to be able to narrow down a problem and repair it for cheap.

What should TPS be at idle?

At idle is should be zero or a couple of degrees. Press down on the gas pedal very S-L-O-W-L-Y until the throttle is all the way open. If the TPS has a worn spot, most likely it will be between 0 and 20 percent throttle opening. Try holding the throttle between 0 and 20 percent to see if you get a steady reading.

What happens if TPS is not calibrated?

If the TPS fails to send the proper data back to the computer, the correct fuel calculations can’t be made. With some engines, other sensors are able to compensate and provide a guess at how much fuel is needed, but this usually causes the engine to accelerate poorly or sporadically.

What happens when you unplug throttle position sensor?

If the TPS is not adjusted correctly as evidenced by a 500rpm idle, and hesitation with initial acceleration, unplugging the TPS connector should then cause a correct idle, and a normal acceleration. Correcting the TPS then produced a correct idle, and no code.