charging10 252 #1 Posted July 3, 2016 my 401 completely lost spark recently, so i decided to treat the little tractor to some new parts,nos coil,capacitor points and condenser.rewired my toggle switch.i still cant get any spark at all, I tested coil and capacitor and there good .any suggestions or wiring diagram would be appreciated, the little things are most frustrating sometimes, thanks Share this post Link to post Share on other sites
N3PUY 1,031 #2 Posted July 3, 2016 Well, with the key "ON" is there 12 volts to the coil? Share this post Link to post Share on other sites
charging10 252 #3 Posted July 3, 2016 no key only toggle switch, coil/ capacitor is under flywheel k91 engine Share this post Link to post Share on other sites
Racinbob 11,889 #4 Posted July 3, 2016 No battery on that one N3. I would try a new spark plug and then make sure the kill circuit wiring isn't shorted out. Setting the points can be a bit finicky so, if still nothing, fiddle with them going maybe .017-.019. Share this post Link to post Share on other sites
wallfish 17,893 #5 Posted July 3, 2016 (edited) You do NOT want 12v to a magnito coil (assuming your working on a K91.) That will fry the coil! Please advise on the engine you ARE using. You write that you installed new points, Try cleaning the contact surfaces because they are usually coated from the factory to prevent oxidization. A K91 will run with ZERO wires connected to it. The kill wire grounds the ignition to shut down so if it is open, the engine should spark. I see we posted at the same time! Disconnect the wire to the toggle switch too. It's possible the current to ground can jump the contacts in the switch. Edited July 3, 2016 by wallfish 3 Share this post Link to post Share on other sites
charging10 252 #6 Posted July 3, 2016 ill give it a try thanks Share this post Link to post Share on other sites
