Polaris 2001 High-Performance Snowmobile Service Manual (PN 9916690), Page 123Get this manual
ENGINE Water Pump Belt Tension
600 RMK, 700 and 800 Domestic Twins The water pump belt on 600 RMK, 700 and 800 domestic twins snowmobile engines should be inspected every 1500 milesBelts should be inspected by measuring the width at several locations around the beltBelt width at any location should not be thinner than .250 (6.35mm)Replace the belt if you notice any loose cords, broken cracked or missing cogs, and variations in widthIf the water pump belt fails, serious engine damage could resultNominal thickness of new belt should be approximately .345 (8.75mm)Check belt tension by rotating crankshaft 18 turn at timeThe tension should be equal at all points of rotation
Replace if width is less than .25 (6.35mm)Nominal new width is .345 (8.75mm)A weight is needed to test belt deflectionConstruct weight out of wire and weights such as thick washersUse the illustration to assist you The finished weight should weigh lbs
Weight Construction