jdb 0 #1 Posted April 30 I have a 312-8 with a magnum Kohler 12 in it. It will not start and I think I need the year to get the correct wiring diagram. Any tips on where to start looking would be appreciated. I have replaced the starter solenoid and ignition switch. Share this post Link to post Share on other sites
ri702bill 8,387 #2 Posted April 30 Welcome!! Could be you got the wrong style 5 prong ignition switch. They look the same externally, but are completely different circuitwise. One is for Battery style ignition, the other Magneto, They do NOT interchange..... 1 Share this post Link to post Share on other sites
pfrederi 17,743 #3 Posted April 30 See if there is sticker on the rear fender pan with model # and serial. if it is gone what is the spec # and serial number of the engine... 2 Share this post Link to post Share on other sites
Ed Kennell 38,330 #4 Posted April 30 1987 to 1997 Check the 25amp fuse and the fuse holder. Mine would not start.... the fuse was good, but the fuse legs were not making cotact. 1 Share this post Link to post Share on other sites
kpinnc 12,175 #5 Posted April 30 Magnums came on tractors after 1987. Depending on the year, there were several safety switches added. For one, the plutch pedal had to be depressed to start. Depending on the PTO safety switches, the seat switch may come into play as well. May take a while to figure it out, but knowing the model number will make it easier. 1 Share this post Link to post Share on other sites
