Boyesen Quickshot Quickstart 3 Quick Start APC-3QS YAMAHA YFZ450 2004-2009

Description

Boyesen Quickstart 3 Accelerator Pump Cover.  Fits YAMAHA YFZ450 Models From 2004-2009.
Available for ALL Keihin FCR-equipped MX/Off-road and ATV models.
Try the most effective way to add performance to your Keihin FCR carburator.
- Integrated Hot Start Assist eliminates problem 4-stroke hot start procedure
- Tunable leak jet maximizes volume of fuel and duration of fuel spray for all conditions
- 25% more fuel capacity
- High volume vertical check valve located in the QS3 for precise, consistent fuel metering
- Patented design stops bogging and improves throttle response
- Improved low end performance
- Investment cast and finished to precise tolerances
- Fits ALL Keihin FCR carbs
- Simple bolt-on for any current kick start model
Application Note: Older models with carburator mounted Hot Start knobs and Electric Start models will require a seperate OEM or aftermarket handlebar mounted Hot Start Lever.