2001 Polaris SLH, Virage PWC Factory Service Manual, Page 237Get this manual
Electrical Systems PVL Ignition TroubleshootingContinued
CAUTION:
Verify spark plugs are RESISTOR TYPE! If the battery voltage is low, cranking rpm will be downThe ignition system may show weak spark with plug out of the cylinder, but not spark under compression or it may show no spark at allInstall charger on the battery to ensure good cranking rpmCheck continuity from inside of both spark plug caps