1978 Polaris RXL Service Manual, Page 42Get this manual
COMPONENT FUN CTI ONS (Can 't
Each engine has slightly diffe rent characteri stics, therefore, two engines of one particu lar cc may not necessarily be jett ed exactly the samePilot jets are instrumental in low rpm performa nceIf the fuel flow is too great low rpm, the excess fuel wi ll build up in the crankcase, and nly with increased rpm will the fu el be transferred to the combustion chamber
CA UT ION :
Too small main jet and too small pilot jet can cause serious engine
damageJet the carburetors carefully
It is the racer's respon sibility to insure that the correct jets are inst alled in mach ineBe very careful when jetting down in warm weat her, as the weather turns colder it ill be necessary to rejet upwards to prevent engine damageThe fo llow ing chart lists all main and pilot jets and th part numb er each that are presently availablePI LOT JET NO, HEX EA MAI JET NO