1999 Polaris SLH, SLTH, SLX, SLTX, PRO785 Factory Service Manual, Page 14Get this manual
GENERAL INFORMATION Glossary Of Terms ABDC: After bottom dead centerATDC: After top dead centerACV: Alternating current voltageAlternator: Electrical generator producing voltage alternating currentBBDC: Before bottom dead centerBDC: Bottom dead centerBTDC: Before top dead centerBow: The front of watercraft C: Celsius CC: Cubic centimetersCOl: Capacitor discharge ignitionIgnition system which stores voltage generated by the stator plate exciter coil in capacitor or condenser (in COl box)At the proper moment voltage generated by the stator plate pulser coil closes an electronic switch (thyristor) in the COl box and allows the voltage in the capacitor to discharge into the primary windings of the ignition coilCI: Cubic inchesCondenserCapacitor: storage reservoir for electricity, used in both E.Tand COl systemsCrankshaft Run-Out: Run-out or "bend" of crankshaft measured with dial indicator while crankshaft is supported between centers on blocks or resting in lower half of crankcaseMeasure at various pOints especially at the PTO endDCV: Direct current voltageDetonation: The spontaneous ignition of the unburned fuelair mixture after normal ignition spark occursPiston looks "hammered" through, rough appearance around holePossible causes: 1) Compression ratio too high for the fuel octane; 2) low octane fuel; 3) over-advanced ignition timingDial Bore Gauge: cylinder measuring instrument which uses dial indicatorGood for showing taper and out-of-round in the cylinder boreEnd Seals: Rubber seals at each end of the crankshaftF: Fahrenheit