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2020 Polaris Ranger Crew XP 1000 Texas Edition
2000-2004 Yamaha SV1200 WaveRunner SUV1200
May allow more spark advance for increased torque
1983 Honda VF1100C V65 Magna
2007-2010 Honda TRX420FE FourTrax Rancher 4X4 ES
Starting Line Products 14-118 Exhaust Valve Springs - White control-handlebars-accessories-switch-covers 2020 Polaris Ranger Crew XPLoad 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.
