The Boyesen QuickShot 3 Accelerator Pump Cover is a bolt-on performance upgrade designed to improve throttle response and eliminate hesitation on Keihin FCR carburetors. Manufacturer part number APC-3K, this Boyesen cover is engineered for compatible KTM 250 SX-F and 250 XC-W models, providing a simple way to refine accelerator pump performance without extensive carburetor modifications.
The patented third-generation QuickShot 3 uses a triple-effect design that completely fills the accelerator pump chamber with fuel, removes trapped air from the system, and provides an adjustable leak jet circuit for quick, hands-on tuning. This adjustable circuit helps maximize fuel volume and spray duration to suit changing riding conditions, making the APC-3K a practical choice for motocross, off-road, and ATV applications equipped with Keihin FCR carburetors.
Investment-cast construction and precise finishing support reliable fitment and consistent operation. A high-volume vertical check valve integrated into the QS3 cover promotes accurate, repeatable fuel metering for improved low-end performance and more immediate throttle response. The Boyesen QuickShot 3 fits all Keihin FCR carburetors and installs as a straightforward bolt-on replacement. It fits 2005–2010 KTM 250 SX-F models and 2006–2009 KTM 250 XC-W models. Verify the carburetor application before installation.
Features:
- Adjustable leak jet circuit for tuning fuel volume and spray duration
- Triple-effect design fills the pump chamber, removes trapped air, and supports consistent fuel delivery
- High-volume vertical check valve for precise accelerator pump metering
- Helps eliminate hesitation and throttle bog
- Provides faster throttle response and improved low-end performance
- Investment-cast construction finished to precise tolerances
- Simple bolt-on installation
- Fits Keihin FCR carburetors
- Compatible with 2005–2010 KTM 250 SX-F and 2006–2009 KTM 250 XC-W models
- Brand: Boyesen
- Manufacturer part number: APC-3K
- Vendor part number: APC-3K
Fitment:
2004 KTM 400 EXC 4-Stroke
2004 KTM 450 EXC-F
2004 KTM 450 SX-F
2005 KTM 250 SX-F
2005 KTM 400 EXC 4-Stroke
2005 KTM 450 EXC-F
2005 KTM 450 SX-F
2006 KTM 250 SX-F
2006 KTM 250 XC-W
2006 KTM 400 EXC 4-Stroke
2006 KTM 450 SX-F
2006 KTM 450 XC-F
2007 KTM 250 SX-F
2007 KTM 250 XC-F
2007 KTM 250 XC-W
2007 KTM 400 XC-W 4-Stroke
2007 KTM 450 SX-F
2007 KTM 450 XC-F
2007 Polaris Outlaw 525 Irs
2008 KTM 250 SX-F
2008 KTM 250 XC-F
2008 KTM 250 XC-W
2008 KTM 450 EXC-R 4-Stroke
2008 KTM 450 SX-F
2008 KTM 450 XC-F
2008 Polaris Outlaw 450 Mxr
2008 Polaris Outlaw 525 Irs
2008 Polaris Outlaw 525 S
2009 KTM 250 SX-F
2009 KTM 250 XC-F
2009 KTM 250 XC-W
2009 KTM 400 XC-W 4-Stroke
2009 KTM 450 EXC-R 4-Stroke
2009 KTM 450 SX-F
2009 KTM 450 XC-F
2009 Polaris Outlaw 450 Mxr
2009 Polaris Outlaw 525 Irs
2009 Polaris Outlaw 525 S
2010 KTM 250 SX-F
2010 KTM 250 XC-W
2010 KTM 400 XC-W 4-Stroke
2010 KTM 450 EXC-R 4-Stroke
2010 KTM 450 SX-F
2010 Polaris Outlaw 450 Mxr
2010 Polaris Outlaw 525 Irs
2010 Polaris Outlaw 525 S
2011 KTM 450 EXC-R 4-Stroke
2011 KTM 450 SX-F
2011 Polaris Outlaw 525 Irs
2012 KTM 450 SX-F