Boyesen QuickShot3 Adjustable Pump Cover
A07-14003 (MFG #: APC-3)
$220.99
Sale price
$220.99
Regular price
$220.99
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Boyesen QuickShot3 Adjustable Pump Cover for Yamaha YFZ450 ATV
Boyesen QuickShot3 Adjustable Pump Cover for Yamaha YFZ450 ATV
$220.99
Sale price
$220.99
Regular price
$220.99
SKU:A07-14003
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Description
The Patented Boyesen QuickShot 3's triple effect: 1. Completely fills the pump chamber with fuel 2. Eliminates troublesome air and 3. Provides an adjustable leak jet circuit for simple hand tuning.
The Result: The ultimate in adjustable fuel injection.
FEATURES
- Tunable leak jet circuit maximizes volume of fuel and duration of fuel spray for any condition.
- Investment cast and finished to precise tolerances.
- High volume vertical check valve located in the QS3 for precise, consistent fuel metering.
- Stops hesitation and bog.
- Instant throttle response and improved low end performance.
- Fits All Keihin FCR carbs, is simple to bolt-on.
Technical Specifications
- MFG. Part Number APC-3
Vehicle Information
Yamaha YFZ450 ATV (2004-2026)
The Yamaha YFZ450 has been a prominent sport ATV from 2004 to 2026. It features a consistent 449cc, liquid-cooled, DOHC, 4-stroke engine with 5 titanium valves, delivering robust performance throughout its production run. A significant evolution occurred around 2009. Early YFZ450 models (2004-2008) were carbureted (Keihin) with an 11.4:1 compression ratio and a lightweight steel frame. From 2009 onwards, the YFZ450R introduced electronic fuel injection (YFI) and an 11.8:1 compression ratio, alongside a redesigned cast aluminum/steel hybrid chassis and an assist and slipper clutch. Special Edition (SE) trims have been available across all years, often featuring unique aesthetics. Q: Is this product compatible with my YFZ450? R: To ensure compatibility, please use our year and edition selector on this page.
Maintenance
| Component | Interval | Details |
| Engine Oil and Oil Filter | Check before each ride. Replace every 15-20 hours or annually (normal conditions), or every 6 months (non-race), or every 5 hours (race). | |
| Air Filter | Clean every 20-40 hours. | More frequently in dusty or wet conditions. Every 2-5 hours for race use. |
| Spark Plug | Check and clean every 3 months. | Replace if necessary. |
| Coolant | Check monthly. Replace every 24 months. | |
| Drive Chain | Clean, adjust, and lubricate every 3 months. | More frequently in wet, muddy, or dusty conditions. |
Intervals may vary by model year and usage. Always consult your ATV's specific owner's manual.