Starting Line Products 14-117 Exhaust Valve Springs - Pink

Load at .63in. - 7.1lbs. Load at 1in. - 4.7lbs..

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. Order 2 per engine.