Delgriffith
Member
I'm stumped. I was running my 860 for snow removal and it was running fine then in the middle of a pass it just quit. No sputtering or anything, almost like I shut the key off. I thought maybe the carb float stuck as that has happened before but only when it sits. Tapped the carb bowl with a piece of metal and tried to restart. It fired a little but wouldn't start. In the process of troubleshooting I left the key on accidentally for several minutes and burned up my electronic ignition sensor. I bought a new model from Pertronix that was updated to have burn up protection (Ignitor II). Installed it and now I'm trying to start the tractor with no luck. It fires and is so close to starting but just won't. I have it plugged in and the engine is warm to the touch. So far I have tried:
Adjust timing each way in case the new sensor was a little different, it seems to fire best at the original setting roughly.
Check spark with inline test light, all 4 cylinders are indicating spark. Also checked by watching the plugs when pulled out.
Pulled the carb and went through it hitting the passages with compressed air and carb cleaner
Check compression, 115-125 all 4 cylinders
Check fuel flow, pours out of the sediment bowl fine.
Check fuel level (duh) over 1/2 tank
It is a 12v conversion if that helps.
Very frustrating!!!!
Adjust timing each way in case the new sensor was a little different, it seems to fire best at the original setting roughly.
Check spark with inline test light, all 4 cylinders are indicating spark. Also checked by watching the plugs when pulled out.
Pulled the carb and went through it hitting the passages with compressed air and carb cleaner
Check compression, 115-125 all 4 cylinders
Check fuel flow, pours out of the sediment bowl fine.
Check fuel level (duh) over 1/2 tank
It is a 12v conversion if that helps.
Very frustrating!!!!