1996 Ski-Doo Shop Manual, Volume 2, Page 48Get this manual
Section 03 TROUBLESHOOTING b-S ectio 01 (E GIN E)
SYMPTOM DITI TestInspection
ENGINE DETONATION AT MAXIMUM RPMN E1Check which type of fuel is usedaO ctane num ber is too lo andor alcohol level is too highUse recom nded fuel typ e2Check spark plug typeaIm proper spark plug heat rangeInstall recom end ed spark plug(s) (refer to EC NICA TA 10)3Check exhaust systemaToo uch restrictionReplace4Check ignition timingaTiming is too advancedAdjust according to specification (refer to TE NIC AL TA 10)5Check carburetionaFoule andor im proper carburetor com ponentsClean or replace according to specification (refer to TE NIC AL TA 10)6Check compression ratio and squish areaaCom pression ratio is too highInstall genuine parts