Starting Line Products 14-118 Exhaust Valve Springs - White electrical-turn-signals-components-wiring 2015 Polaris Sportsman 850

2015 Polaris Sportsman 850

Second generation controller with improved remote range

Provide exceptional hookup on loose soft snow and powder

2015 Harley Davidson XG500 Street 500

Top Font Vent for FF-98 Helmets

Starting Line Products 14-118 Exhaust Valve Springs - White electrical-turn-signals-components-wiring 2015 Polaris Sportsman 850Load at . 63in. 2. 8lbs. Load at 1in. 1. 6lbs. Polaris exhaust valves open with cylinder pressure. As you go up in elevation, cylinder pressures are reduced causing exhaust valves to open later than they should or in some cases not at all. This can cause poor and inconsistent top end horsepower. Changing to lighter exhaust valve springs allows the exhaust valves to open at the proper time maintaining proper top end horsepower and running consistency.