1992-1998 Polaris Personal Watercraft Service Manual PN 9912201, Page 96Get this manual

1992-1998 Polaris Personal Watercraft Service Manual PN 9912201, Page 96

MAINTENANCETUNE UP TroubleshootingElectricalFinal Drive Electrical NOTE: yellow color may develop on spark plugs over time
coil (blkblk-white on Polaris-Fuji engines) Faulty ignition coil Faulty exciter coiltrigger, or pulseI' coil (test stator)
Excessive crankshaft runout on Magneto end (digital COl only) ( .004" or .10 mm) Vibration Pump Damaged impeller or stator
vanes in pump Driveshaft bent or engine alignment incorrect Pump cavitationworn pump bearings Engine mounting plate bolts
loose Loose, worn, or broken rubber engine mounts Rich runningcarb synchronization, popoff valve stuck open, excessive pisto'l
to cylinder clearance, ring end gap, needle and seat dirty or stuck open Exhaust pipebracket loose Muffler loose or rubbing
on hull Fasteners loose or broken Crankshaft out of index or runout excessive Misfire on one or more cylinders Porpoising
Hull Misaligned hull extension (Hurricane) Ride plate incorrect, misaligned, or damaged (dentedwarped) Water in hull Trimmed
up too far Wrong pump wedge (Hurricane) To reduce porpoising for larger riders, install an accessory ride plate with length