Fuel and Intake

Driven Engine Block-off Plates will stop the annoying and possibly damaging backfires from occurring while allowing you to remove a few pounds in associated valves and hoses from your bike. On late model EFI bikes with O2 sensors, ESPECIALLY when using Dynojet's Power Commander 6 with the Autotune feature, the air injection system MUST be blocked as it will introduce additional oxygen into the system which will skew your O2 sensor's values and make it impossible to get a correct tune.

• Includes all necessary parts to rebuild the OEM fuel pump module
• Restore lost performance or non-functioning fuel pump with this economical solution
• Kit comes ready for plug-and-play installation

Boyesen Pro Series dual-stage reeds combine a carbon-fiber top reed with a fiberglass bottom reed for unrivaled performance. The Pro Series Reeds are more responsive than our traditional Power Reeds. The carbon-fiber top reed has excellent response characteristics that provides even quicker acceleration, stronger throttle response, and more over-rev than our standard Power Reeds. The fiberglass bottom reed provides stability and longer reed life.

This cover acts as an "adjustable leak jet" to fine tune the accelerator pump squirt.

Eliminates "4-stroke bog" when used with correct jetting. Allows the use of correct carburetor settings to optimize performance, starting and reliability. Improved low-end performance with much better throttle response. Investment cast and finished to precise tolerances with internal high volume vertical check valve. Fits all motorcycles and ATVs using a Keihin FCR carb. Easy installation instructions (including online video) and template.