Ro-Go 76 #1 Posted July 17, 2020 Gents, I'm going to be as clear and detailed as possible here. Thank you in advance for any help/leads/expertise. Tractor: 1986 414-8 with 3 amp charging system. Battery ignition. Electric lift (more on that later). Work done to it recently: installed Facet electronic fuel pump; installed Kirk's Engines transducer ignition, Bosch blue coil, new points, plug, ignition wire Cleaned it up, was running famously. While mowing, engine cut out. Tried to restart, got NOTHING. What I've done to diagnose issue: I have recharged and load tested the battery. It's good; cleaned and lubed with Gibbs oil all electrical connections; checked fuses -- all good; replaced ignition switch with brand new Stens part; traced 12 volts coming from the positive terminal of the battery. I have 12 volts coming to the relay that connects main power to the electric lift and the ignition switch; I have no juice coming out of the relay -- see picture: That is a new relay; I thought it was the issue. If I remove the relay and jump the connections, I get power -- all accessories and fuel pump engage when key is in R position. There's just no way I believe I got a bad relay, or even that the original is toast. My father thinks it might be the seat kill switch. Do those ever go bad? What am I missing? Share this post Link to post Share on other sites
gwest_ca-(File Mod) 11,561 #2 Posted July 17, 2020 Any of the indicator lights come on when the fault is present? That should point you to the failure if it is working. Will not be the seat switch. It controls the ignition only. Garry Share this post Link to post Share on other sites
Ro-Go 76 #3 Posted July 17, 2020 Garry, thank you. So -- it was a fuse; two, to be exact. My father and I downloaded the wiring diagram here, with the diagram for the electric lift that adds the relay. The seat switch fuse (15A) and the accessory pink wire fuse (5A) were both blown. Why the hell would that happen? Hopefully my problems are solved (knocking on wood). J 2 Share this post Link to post Share on other sites
squonk 44,036 #4 Posted July 17, 2020 Fuses blow because of a short. Check your wires from the seat switch all the way to where they end. One is probably pinched. 1 Share this post Link to post Share on other sites
johnnymag3 2,581 #5 Posted July 17, 2020 Left you a message with regards to the Uni-Drive....check your message where you sent it to me., regards, john Share this post Link to post Share on other sites
