2005 Sportsman 500 HO Timing/Running Not Great
#1
2005 Sportsman 500 HO Timing/Running Not Great
Symptoms:
Crack the throttle real quick and the machine dies. Ease into throttle it runs fine.
At throttle, timing is retarded (If retarded is too far forward clockwise). Once machine hits a few thousand RPM's timing is dead nuts and remains up through the RPM range. Let off the throttle, timing goes back out and will die if throttle is pushed in quick.
Replaced:
Carb, ECM, CDI.
Have put four different CDI boxes on the machine. Two aftermarket that advance the timing (Machine won't even fire or idle in a bad way). Two OEM that retard it.
Crack the throttle real quick and the machine dies. Ease into throttle it runs fine.
At throttle, timing is retarded (If retarded is too far forward clockwise). Once machine hits a few thousand RPM's timing is dead nuts and remains up through the RPM range. Let off the throttle, timing goes back out and will die if throttle is pushed in quick.
Replaced:
Carb, ECM, CDI.
Have put four different CDI boxes on the machine. Two aftermarket that advance the timing (Machine won't even fire or idle in a bad way). Two OEM that retard it.
#2