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

SKU: IDLE250 Category:


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.

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

Year Make Engine CC Model
Year Make Engine CC Model
2018 Husqvarna 250 TE-i
2018 KTM 250 XC-W TPI
2019 Husqvarna 250 TE-i
2019 KTM 250 XC-W TPI
2020 Husqvarna 250 TE-i
2020 Husqvarna 250 TX-i
2020 KTM 250 XC TPI
2020 KTM 250 XC-W TPI
2021 Husqvarna 250 TE-i
2021 Husqvarna 250 TX-i
2021 KTM 250 XC TPI
2021 KTM 250 XC-W TPI
2022 Gas Gas 250 EC TPI
2022 Gas Gas 250 EX TPI
2022 Husqvarna 250 TE-i
2022 Husqvarna 250 TX-i
2022 KTM 250 XC TPI
2022 KTM 250 XC-W TPI
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