Man O Man..I got a doozie of a electrical problem with a circa 69-70 Cub 126.
This machine has started faithfully from cold with very little choke and ran great with no electrical issues that I know of..The charge indicator gauge has worked fine, showing more charge rate right after start-up, and then moves back left to just past the center of it's dial range tapering off as the battery recovers and is recharged, from the initial current draw-down from starting the engine.
OK. I recently had a new clutch installed. Long story short, the guy who did the clutch job said he found a loose/disconnected wire at the voltage regulator and reconnected it. He never mentioned what color wire and I never thought to ask. Personally I never noticed a disconnected wire before, but then again, maybe I was not looking very close either, due to the fact the machine started and charged fine..So this is where the mystery begins. Last Saturday after work, I started the tractor, it was charging and running fine, and the voltage meter showed the charge tapering off as normal. I ran it for maybe an hour and happened to look down at the volt meter and seen it was pegged to the Positive side of gauge. I throttled the engine back, got no drop in charge rate and then decided to shut the key off and stop the engine. It shut down and I looked under the hood and found nothing looking out of the ordinary. ..So I thought I'd restart the engine and take the machine back to the garage..When I turned the key on..I got no movement from the volt meter and no reaction at all from the starter/generator..
I've check the wiring to the voltage regulator and it appears to be correct. I had a very loose connection on solenoid on the battery side. I tightened that up. Still no reaction at the volt meter or the S/G. I swapped out the S/G for a known good one and still nothing..
If any of you guys have any ideas as to what to check and how, Please do let me know as this it driving me nuts and my grass is growing like mad!
Thanks so much for any help or advice.
John Mitchell
Cecilia. Ky.