Does anyone have experience using heat to release a stuck Sprag on the Starter gears?
The idea is to direct heat with a steel pipe/duct, from a heat gun that can output 300 degF, or 600 degF, on to the Starter gear that engages the Primary gear on the crankshaft.
My project '85 K100RT has not been started in multiple years.
I have rebuilt and bench tested the Starter. After re-install, the Starter just free-spins without engaging the sprag.
After trying the pop the clutch rolling backwards in 3rd gear a good 30 times, I decided to try a bump-start. Since my driveway did not have the angle/distance to get my Brick up to speed, this week I loaded it up, and went to a hill where I could hit 35 mph (tested with another bike, rolling in neutral).
Feathering out the clutch in 2nd, the engine turned over some, but not even a cough or bark of running. Fuel pump did come on with the key. Also tried hitting the Starter button a couple of times on my downhill roll. Battery load tested, and fully charged.
New fuel filter. Fuel rail cleaned. Fuel injectors cleaned and tested. Half tank of 93 octane fuel, around 2 weeks old.
Spark plugs checked.
Yes, I had the walk of shame, up the hill, to get my truck and trailer, to drive it back down and load the non-running Brick. I had been hoping it would start, and I would ride it back up the hill. :-(