Ketchup
Epoxy member
- Local time
- 7:45 PM
- User ID
- 5594
- Joined
- Mar 12, 2018
- Messages
- 2,032
- Reaction score
- 6,332
- Location
- Colorado
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Fellas, I could use some help here.
A guy brought me this 500. It pops and dies within 5 seconds. No amount of throttle or priming improves it. Will not pop if throttled while starting.
I’ve been all through the saw. It had some light scoring on the intake side of piston so I replaced that. The decomp was leaking terribly, now plugged. No other leaks. Saw hasn’t seen much use. When I pump the primer more than 6 times fuel leaks from the line where it connects to the injector. Could be the injector is bad, could be the module, could be fuel sensor, could be stator, could be wiring related to any of the above. Replacing all that costs over half the saw.
I had a buddy at the Stihlership plug it in. It’s been started successfully about 800 times, over 3000 failed starts (probably a few hundred from me messing with it). My Stihl friend really didn’t have a good guess.
So where do I go with this? My guess is injector or module, but I don’t know these saws very well. Any insight would be helpful.
A guy brought me this 500. It pops and dies within 5 seconds. No amount of throttle or priming improves it. Will not pop if throttled while starting.
I’ve been all through the saw. It had some light scoring on the intake side of piston so I replaced that. The decomp was leaking terribly, now plugged. No other leaks. Saw hasn’t seen much use. When I pump the primer more than 6 times fuel leaks from the line where it connects to the injector. Could be the injector is bad, could be the module, could be fuel sensor, could be stator, could be wiring related to any of the above. Replacing all that costs over half the saw.
I had a buddy at the Stihlership plug it in. It’s been started successfully about 800 times, over 3000 failed starts (probably a few hundred from me messing with it). My Stihl friend really didn’t have a good guess.
So where do I go with this? My guess is injector or module, but I don’t know these saws very well. Any insight would be helpful.