General Information 2012 600 RUSH Clutch Settings Model Numbers: 600 RUSH S12BF6NSA / S12BF6NSL 600 RUSH PRO-R S12BP6NSA / S12BP6NSB / S12BP6NSC / S12BP6NSL S12BP6NEL / S12BP6NSM / S12BP6NSP Engine Clutch Settings (Electric Start Models) Fuel Delivery NOTE: OPTIONAL - USE 2 GRAM LIGHTER CLUTCH WEIGHTS WHEN OPERATING IN PROLONGED WARM TEMPERATURES (LATE FALL/SPRING SEASON) TO MAINTAIN PEAK OPERATING RPM.
Track 1.16 ALTITUDE meters (feet) DRIVE CLUTCH P2 DRIVEN CLUTCH Shift Weight Clutch Spring Clutch Spring Driven Helix Gearing 0-600 (0-2000) 10-64 BLACK 120 - 310 7043681 130 - 180 Tabbed 7043515 58/42 - .45 5137176 23:39 - 72 600-1200 (2000-4000) 10-62 22:39 - 72 1200-1800 (4000-6000) 10-60 22:40 - 72 1800-2400 (6000-8000) 10-58 2400-3000 (8000-10,000) 10-56 20:41 - 72 3000-3600 (10,000-12,000) 10A-L Drive Clutch Bolt Torque: 80 ft-lbs (108Nm) Re-torque after running engine.
Engine Type Liberty Liquid-Cooled / Case Reed Induction Model Number S4357-6044-OL6N Displacement / # Cylinders 599cc / 2 Bore (inches/mm) 3.04 / 77.25 Stroke (inches/mm) 2.52 / 64 Piston to Cylinder Clearance (inches/mm) .0033-.0054 / 0.085-0.137 Installed Ring Gap (inches / mm) .017-.025 / 0.450-0.650 Operating RPM ±200 8250 Idle RPM ±200 1700 Engagement RPM ±200 3800 Exhaust Valve Spring Purple Thermostat Opening Temperature (° F/ ° C) 120 / 49 ALTITUDE meters (feet) DRIVE CLUTCH P2 DRIVEN CLUTCH Shift Weight Clutch Spring Clutch Spring Driven Helix Gearing 0-600 (0-2000) 10-64 BLK/GRN 120 - 340 7042083 130 - 180 Tabbed 7043515 58/42 - .45 5137176 23:39 - 72 600-1200 (2000-4000) 10-62 22:39 - 72 1200-1800 (4000-6000) 10-60 22:40 - 72 1800-2400 (6000-8000) 10-58 2400-3000 (8000-10,000) 10-56 20:41 - 72 3000-3600 (10,000-12,000) 10A-L Drive Clutch Bolt Torque:
80 ft-lbs (108Nm) Re-torque after running engine. Type - Number of Fuel Injectors DC-CFI - 4 Throttle Body Marking 1203978 Throttle Body Bore 46mm TPS Voltage @ Idle (5 VDC +/- .01 Input) 0.95 +/- 0.01 VDC Fuel Pressure - PSI (bar) 58-60 (4.0-4.1) Fuel Octane (R+M/2) 10% Ethanol 24 Resistor Premium/Non-Ethanol 160 Resistor Width - Inches (cm) 15 (38) Length - Inches (cm) 121 (307) Pitch Plies 2.52 2 Lug Height - Inches (cm) Base PRO-R International Models 1.0 (2.54) (Hacksaw) 1.25 (3.175) (Ripsaw) 1.352 (3.43) (Cobra) Track tension sag in/mm with 10 lbs/4.54kg placed 16 in/40cm ahead of rear idler shaft 1/4- 3/8(6.3 - 9.6mm)