2004 Polaris Predator Owners Manual - Page 129
2004 Polaris Predator Manual
Page 129 highlights
MAINTENANCE AND LUBRICATION Spark Plugs 1. Normal The normal insulator tip is gray, tan or light brown. There will be few combustion deposits. The electrodes are not burned or eroded. This indicates the proper type and heat range for the engine and the service. NOTE: The tip should not be white. A white insulator tip indicates overheating, caused by use of an improper spark plug or incorrect carburetion adjustments. 2. Wet Fouled The wet fouled insulator tip is black. A damp oil film covers the firing end. There may be a carbon layer over the entire nose. Generally, the electrodes are not worn. General causes of fouling are excessive oil, use of non-recommended oil, improper use of the choke, or incorrect carburetion adjustments. 126
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126
MAINTENANCEANDLUBRICATION
SparkPlugs
1.Normal
Thenormalinsulatortipisgray,tanorlightbrown. Therewillbefewcombustion
deposits. Theelectrodesarenotburnedoreroded. Thisindicatesthepropertypeandheat
rangefortheengineandtheservice.
NOTE:
Thetipshouldnotbewhite. Awhiteinsulatortipindicatesoverheating,caused
byuseofanimpropersparkplugorincorrectcarburetionadjustments.
2.WetFouled
Thewetfouledinsulatortipisblack. Adampoilfilmcoversthefiringend. Theremaybe
acarbonlayerovertheentirenose. Generally,theelectrodesarenotworn. Generalcauses
offoulingareexcessiveoil,useofnon-recommendedoil,improperuseofthechoke,or
incorrectcarburetionadjustments.