Electrical Starting Problem

Anonymous-0

Well-known Member
I am having a hard time starting my 841. First off I managed to leave the key in the on position for about a week, but after that charged the battery, and it started fine. I worked it for about an hour, stopping and starting it a half dozen times to see if the battery was holding a charge and it started just fine each time while warm and I figured it was good. Parked for a few days, went to start it, and wouldn"t. Charge seemed a little low, so tried jumpstarting it. Had 12.5 volts on battery when at rest, 11.5 volts while cranking, but when pulled the plug wires, had no spark from plugs to engine block, then just a weak yellow spark from wire from coil to block. I replaced the coil in the spring, and cleaned up distributor, and plug wires and plugs last fall. So hopefully its none of those; all parts were Tisco. The distributor was replaced by a previous owner, my guess is about 10 years ago. This is a 12 volt, negative ground system. If any body has ideas on where to look next I"d appreciate hearing it, Thanks
 
tisco points are just about the quality of horse or cow dung.. and even less after you leave the key on.

i'd also look at that charge system.

leaving tghe key on left the alt turned on if it was 3 wire.
 
Very good chance the points are fried due to leaving the key on and you got lucky they even worked one time after that
 
I would agree with the poster about quality of Tisco points, get some napa premium ones.

Batteries that have been run flat do not seem to last long. I would not get myself in a position of needing it without replacing it.
 
Hopefully, it's just the points.

A neighbor borrowed my 2N one time. Left ignition on and burned out the coil.
 
I finally got to replacing the points, and it still won't start. I didn't try gapping points yet. I'd hoped it would start good enough to get it off the hill and could get it back to the garage to properly set points, but I have NO spark on wire from coil to ground now. When have jumpered to my truck tractor shows 13.5 volts, postive on battery to engine block. When cranking it drops to about 10.5 from block to + terminal on coil, then slowly lower and lower. Do you think a new battery is the next best thing to swap out? Thanks in advance
 

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