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By 953 nut
I have a few basic electrical system diagrams that are helpful in understanding how the wiring system works. They are not specific to any particular tractor and do not include safety switches. All use the 5 post ignition switches 103-991 for Magneto and 103-990 for Battery Ignition. I failed to include fuses in the Starter Generator drawing, this is an over-site and I would encourage fuses be used as shown in the other two drawings.
Hope this is helpful.
Magneto Ignition system with electric start and solenoid.
Battery powered ignition system with points, condenser, solenoid and electric start.
Battery powered ignition with solenoid, points, condenser, Starter Generator and a mechanical voltage regulator.
By RJ Hamner
Let me first say that it ran when I brought it home. Drove it around the guys yard, tried out the mower, drove it onto the trailer and drove it off the trailer and into the garage.
I've done a "ground up" restore on the tractor (70 Charger 12). Swapped out the breakerless for a battery ignition and swapped out the 10 amp for a 15 amp stator, flywheel and regulator.
Pulled the head, looked pretty good, new head gasket and head bolts.new fuel pump, fuel lines,new switches and wiring, new aftermarket carb, new coil, coil wire, new points, new throttle and choke cables.
Static timed (twice just to make sure) Have tried Autolite 216's and the hotter 437's. changed the condenser to the high dollar Kohler one.
It will idle but when I give it some throttle it stumbles or will rev up a little then quits.
I've gone thru the "trouble shooting " steps multiple time and to no avail
Anyone got any ideas?? I am willing to try most anything at this point
I'm thinking about buying a Leak down tester. Looking online they range from $29 to $200+. Harbor freight sells a Pittsburg brand one for $39. And several other companies sell that same looking one (Different names) for $29 to$49: There is an OTC brand one for $&9 and $199.
So what do y'all use?
Does anyone have the Harbor Freight one? I'm a little skeptical l, but like the price for the little bit I will use it. Of course if it's not accurate it a worthless .