Holeshot, Bakre bromscylinderlock, BLÅ, Yamaha 03-14 WR450F, 03-17 YZ450F, 03-15 WR250F, 03-18 YZ250/YZ250F, 03-18 YZ125

This bolt-on performance accelerator pump cover eliminates bog, improves throttle response and offers hassle free leak jet circuit tuning.

* Tunable leak jet maximizes volume of fuel and duration of squirt for all conditions
* Investment cast and finished to precise tolerances
* 25% more fuel capacity
* High volume vertical check valve for precise, consistent fuel metering
* Stops hesitation and bog
* Instant throttle response
* Improved low end performance
* Fits ALL Keihin FCR carbs
* Simple bolt-on