BOYESEN QUICK START BOYESEN APC-3QS, APC-3QS KEIHIN FCR CARB Sprockets Side-zip pockets let you stash

Side-zip pockets let you stash stuff securely

high performance motorcycle chains

Rieju MR Racing 250 2021-2024

Yamaha - XJR1300 - 2010

Patent pending

BOYESEN QUICK START BOYESEN APC-3QS, APC-3QS KEIHIN FCR CARB Sprockets Side-zip pockets let you stashQuickStart Boyesen APC 3QS The most effective way to add performance to a Keihin FCR carburetor 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 percent 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