FLtractor 105 #1 Posted yesterday at 02:53 AM (edited) Evening, While in the the process of figuring out various issues my 856 has, the new Wheelhorse ignition I ordered will be arriving this week hopefully.. can someone recommend a good book that’s simple to understand about the process of electrical system as it would relate to our vintage tractors? Ohms, amps, volts, how to calculate how many amps ignition can handle with certian number of wire devices - lights ect ran to it, regulator workings, generator working, ignition ect. Possibly an online video? But enjoying physical book as well to the me break from being on my phone so much. Edited yesterday at 02:55 AM by FLtractor Share this post Link to post Share on other sites
gwest_ca-(File Mod) 11,901 #2 Posted 23 hours ago This older Kohler service manual covers the starter/generator - it is not in the newer manuals The 523 page Demystification Guide explains the electrical basics followed by many wiring diagrams for later models. Share this post Link to post Share on other sites
953 nut 63,461 #3 Posted 15 hours ago A while back Mike @squonk had a handy guide for wire size based on the load and distance. Share this post Link to post Share on other sites
rmaynard 16,761 #4 Posted 15 hours ago If you have ordered coil, points, condenser, spark plug, spark plug wire, and correct ignition switch, (everything that is related to the ignition), then all you need is a wiring diagram, and the Kohler manual for settings. It's very simple. Share this post Link to post Share on other sites
squonk 45,016 #5 Posted 14 hours ago I believe WH used either 16 or 14 ga. wire for the primary wiring with 6ga Battery cables. I use 14 ga and upsize the bat cables to 4ga especially on the starter gen models as they take close to 60 amps to start 2 Share this post Link to post Share on other sites
FLtractor 105 #6 Posted 5 hours ago 17 hours ago, gwest_ca said: This older Kohler service manual covers the starter/generator - it is not in the newer manuals The 523 page Demystification Guide explains the electrical basics followed by many wiring diagrams for later models. Thank you very much. Will need to print them out Share this post Link to post Share on other sites
FLtractor 105 #7 Posted 5 hours ago 9 hours ago, 953 nut said: A while back Mike @squonk had a handy guide for wire size based on the load and distance. Thank you for the recommendation tag assist 1 Share this post Link to post Share on other sites
FLtractor 105 #8 Posted 5 hours ago (edited) 8 hours ago, squonk said: I believe WH used either 16 or 14 ga. wire for the primary wiring with 6ga Battery cables. I use 14 ga and upsize the bat cables to 4ga especially on the starter gen models as they take close to 60 amps to start Thank you for the helpful info. Would there be any benefit to using 14 gauge instead of 16 gauge wire from fuel pump to coil and battery? It’s a posi faucet electric pump. Is it possible to use too heavy duty of a wire regarding electric current flowing from component A to component B.. not just too big in terms of wire size diameter more or less easier to bend maneuver ect? Edited 5 hours ago by FLtractor Share this post Link to post Share on other sites
FLtractor 105 #9 Posted 5 hours ago (edited) 9 hours ago, rmaynard said: If you have ordered coil, points, condenser, spark plug, spark plug wire, and correct ignition switch, (everything that is related to the ignition), then all you need is a wiring diagram, and the Kohler manual for settings. It's very simple. Thank you for very helpful diagram and info. At this time I only replaced the spark plug, and going to install new ignition once arrives and new electric fuel pump. Figured I should replace all the ignition components yet since currently does have good spark.. unless I should just replace coil, spark plug wire condenser and the wires to all of them? And just clean points instead of replacing? Since have no idea how old any of it is or last time changed or hour of use. Best to start brand new with everything now so i know how current (no pun intended) is? Or as old saying goes if not broke don’t fix it? Could put hour meter on that wraps around coil wire to tell time of use once replaced all igition parts? Edited 5 hours ago by FLtractor Share this post Link to post Share on other sites
squonk 45,016 #10 Posted 5 hours ago 22 minutes ago, FLtractor said: Thank you for the helpful info. Would there be any benefit to using 14 gauge instead of 16 gauge wire from fuel pump to coil and battery? It’s a posi faucet electric pump. Is it possible to use too heavy duty of a wire regarding electric current flowing from component A to component B.. not just too big in terms of wire size diameter more or less easier to bend maneuver ect? Heavier wires only drawback is it's harder to run and bend neatly. There is little benefit to run larger wire to the coil. The only benefit is strength as ignition doesn't need a lot of amps. Starting the engine takes a lot of amps and larger wire can handle it better as it ages. Share this post Link to post Share on other sites
FLtractor 105 #11 Posted 5 hours ago 2 minutes ago, squonk said: Heavier wires only drawback is it's harder to run and bend neatly. There is little benefit to run larger wire to the coil. The only benefit is strength as ignition doesn't need a lot of amps. Starting the engine takes a lot of amps and larger wire can handle it better as it ages. Oh ok. So as you said only larger required wire is for the battery terminals to ignition and ground.. Now on to find the best local price by the foot 14 or 16 gauge wire for other 856 needs. Thank you Share this post Link to post Share on other sites
