2007-2008 Polaris IQ Snowmobiles Service Manual, Page 193Get this manual
PVT System Belt WearBurn Diagnostics Table 7-1: Belt WearBurn Diagnostics
POSSIBLE CAUSE Driving at or about engagement RPM for extended periods of time in any type of snow conditionSOLUTION Drive at higher RPM if possibleGear the machine downMake sure belt deflection is at 14" to achieve optimum starting ratioBe patientWarm up engine at least minutes or until it readily responds to throttle inputFor the quickest most efficient drive away in extreme cold weather, take drive belt off machine and bring it in to warm environmentBreak skis and track loose from the snowEngage throttle aggressively for short durations for initial cold drive away When possible, do not go in deep snow when towing another machineUse fast, effective throttle to engage the clutchNot all machines are intended for pulling heavy loads or other machinesLower the gear ratioRemove windage plates from driven clutchIf possible, move to better snow conditions and reduce RPMAvoid riding in very high ambient temperatures Break loose snow and ice under tunnelAllow longer than normal warm-upAllow belt to warm sufficiently and increase grip ability on clutch sheavesUse fast, effective throttle when engaging clutchMaintain good state of tune including throttle and choke synchronizationCheck for fouled spark plug(s)Check for foreign material in carburetorsMake sure no water or ice is present in the fuel tank, lines, or carburetorsUse caution when loading machineCarbide skags may gouge into trailer and prevent drive train from spinning freelyUse enough speed to drive completely onto trailerIf machine cannot be driven completely onto trailer, it may need to be pulled or pushed to avoid belt wearburningCheck for correct clutch components, or damage on the clutch Use fast, effective throttle to engage the clutch