skyhighatv
12-19-2008, 06:40 PM
just recantly did the cam mod on a 05 yfz450.fix the problem for a friend who attempted the cam mod. he move the ex cam one tooth to many.after fixing the ex cam started the bike.ran real choppy but ran.the carb was off for a good cleaning could be reason for choppyness.came out next week to start and work out choppyness. would not start.checked spark none.changed coil,cdi,rectifer from second yfz.still no spark.second bike sparks with frist bikes electrical equip.put test light on wires coming out off flywheel cover light is get a pluse.need help .could this be a woddruff key.i can see the flywheel spinning throught the timing cap. up for any ideas please reply thanks.