boatman 3 #1 Posted January 27, 2010 :thumbs: I HAVE A RECENTLY PURCHASED 312H WHEELHORSE TRACTOR. THE VOLT METER AND HOUR METER DO NOT WORK{VOLT METER IT SELF IS BAD] AND ALSO THE PANEL WITH ALL THE LITTLE RED LIGHTS IS BAD. I WOULD LIKE TO REWIRE THIS TRACTOR FOR JUST THE BASICS. THAT IS ENG FUNCTIONS AND LIGHTS. CAN ANYONE HELP WITH THE ENGINE WIRING. THE WIRES COMING FROM ENG ARE BLUE, WHITE, ORANGE, AND BROWN. THANKS!!! Share this post Link to post Share on other sites
whfan74 2,066 #2 Posted January 27, 2010 :banghead: Someone will be along shortly to help you out with your question. You have definitely come to the right place to get your questions answered! Share this post Link to post Share on other sites
Save Old Iron 1,566 #3 Posted January 27, 2010 Boatman, how simple are you going ? no safety switches ?? The indicator board is just that - an indicator - the tractor will run without the board in place. Not sure if this matters, but what year is the tractor ? Maybe we can get you going with a little well directed troubleshooting of the current wiring. :thumbs: 1 Share this post Link to post Share on other sites
boatman 3 #4 Posted January 27, 2010 THANKS FOR REPLY GUYS. THE TRACTOR IS A 1990 I BELEIVE. I DON'T CARE ABOUT THE SAFETY SWITCHES. AS LONG AS IT STARTS RUNS AND CHARGES THE BATT. I AM FAMILIAR WITH THE K SERIES ELECTRICS BUT THIS FIRST MAGNUM SERIES. THE TAG WITH THE SERIAL NUMBERS AND MODEL NUMBERS IS UNREADABLE. I APPRECIATE ALL HELP. THANKS Share this post Link to post Share on other sites
pfrederi 17,645 #5 Posted January 27, 2010 You should download the electrical demystification guide from Toro. The short answer is: White From your regulator to charge battery Tan (Brown ?) Oil level safety switch Blue Magneto...IMPORTANT this is a ground do NOT apply voltage to it or you will fry your ignition system...a costly error Orange Oil level Red Solenoid Share this post Link to post Share on other sites
Duff 206 #6 Posted January 28, 2010 Boatman, download this manual. It's got a set of wiring diagrams and just about everything else you'll need to work on a Magnum engine. (Heads up - it's 152 pages long!) http://www.kohlerengines.com/onlinecatalog/pdf/tp_2203_a.pdf Cheers! Duff Share this post Link to post Share on other sites
boatman 3 #7 Posted January 28, 2010 :thumbs: THANKS DUFF FOR INFO A GETTING MANUEL FOR WIRING.ALSO THANKS TO ALL WHO ANSWERED.I THOUGHT MAYBE IGNITION WIRE WAS TO GO TO GROUND BEING AS THIS HAD MAGNETO UNDER FLYWHEEL.THAT WAS THE MAIN THING I WAS CONCERNED ABOUT IF CHOOSE TO REWIRE THE TRACTOR. THANKS AGAIN TO ALL Share this post Link to post Share on other sites
rickv1957 72 #8 Posted January 29, 2010 Hope you geter up and going!,Rick Share this post Link to post Share on other sites
boatman 3 #9 Posted February 15, 2010 B) THanks for wiring info. I got her up and running and all si working again. It is charging fine and all lights work. Found 2 wires that go to a terminal on back of key switch had come loose in the plug. I pulled old spade connector out of plastic plug and put a new one on and pushed back into plug and all is well. Now i have tractor all tore down so I can do a restore. Share this post Link to post Share on other sites
