SKU IDLE250 Category

Idle Screw for KTM/Husky/Gas Gas 250cc TPI

Idle screw and spring necessary to do the ‘idle screw mod’ on all KTM/Husky/Gas Gas 250 TPI bikes.


Model Validator - Please enter your bike info before adding to cart


The idle screw modification allows riders the ability to adjust the idle on their KTM or Husky 250 TPI dirt bike.  By having an actual “adjustable” idle screw, this allows riders to use the air mixture screw on the side of the throttle body, as an actual adjustment to modify the air/fuel mixture flowing through the throttle body.  The air mixture screw provides adjustments to richen or lean the air/fuel mixture, enhancing overall throttle response and engine performance for individual rider preference.  Turning the air screw “in” (clockwise) will richen the air/fuel mixture.  Turning the air screw “out” (counter-clockwise) will lean the air/fuel mixture.

For more information on the idle screw modification and installation, or how the air/fuel mixture screw works, click on the TSP Tech Tip video below. Please be sure to specify your make/model/year in the Model Validator to ensure proper fitment.


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Below are the make(s) and model(s) that will fit this part.

YearMakeEngine CCModel
YearMakeEngine CCModel
2018KTM250XC-W TPI
2019KTM250XC-W TPI
2020KTM250XC TPI
2020KTM250XC-W TPI
2021KTM250XC TPI
2021KTM250XC-W TPI
2022Gas Gas250EC TPI
2022Gas Gas250EX TPI
2022KTM250XC TPI
2022KTM250XC-W TPI
2023Gas Gas250EC TPI
2023Gas Gas250EX TPI
2023KTM250XC-W TPI
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