In Reply to: 9N Starter Disengages When Engine Tries to Start posted by Tony Sanchez OR on November 10, 2017 at 17:30:15:
You can get the newer style bendix or you can do a tune up on the tractor.
It works like this......the bendix engages the ring gear on the flywheel & turns the engine over. When the engine speed exceeds the design speed of the bendix (because the engine is running) it disengages. (and I can never remember what RPM that is) All the new style bendix does is allow a higher engine speed before it disengages.
What is happening in your engine is that 1 or 2 plugs fire, the engine momentarily exceeds the bendix disengage RPM.....and it disengages before you have all 4 firing.
If you want to tune it up, just ask; plenty of folks can walk you through that (but see tip # 39 first).
And, if you want to pull the starter & replace the bendix, just ask about that as well.