gwest_ca-(File Mod) 11,388 #26 Posted January 24, 2019 Ignition switch. Napa usually carries this in stock. Click on the pictures. Clutch pedal switches rarely fail in my experience The other switch in the starter circuit is the pto switch and I think this is the one you have. If not let us know. Garry 2 1 Share this post Link to post Share on other sites
raven2955 23 #27 Posted January 24, 2019 i have ordered a switch thru EBay 103 990 I have a VOM and continuity tester and test light. I also downloaded all the great info I just received from you folks to my Wheelhorse Library on my computer. I will clean the tractor up and begin looking at the wiring diagram I have. wish I had a color coded as I would probably try to make sure wires were back to more like original. I have several tractors and a engine Kohler 8hp that was disassembled and the previous owner was in over his head. I like trouble shooting and I am patient enough to learn as I go. Will look at clutch switch and check for continuity first Share this post Link to post Share on other sites
ebinmaine 71,804 #28 Posted January 24, 2019 @raven2955 Good to hear you have the patience and tools to work through this. As far as the color coding on the wires... @BOB ELLISONELLISON or @953 nut Both have great schematic diagrams I have used to rewire my tractors that are the same vintage as yours. 1 Share this post Link to post Share on other sites
raven2955 23 #29 Posted January 25, 2019 Just finish tracing the wiring on the C120. The pto wires are gone , the pTO safety switch was cut and the wire was ran straight to the solenoid. I am having a hard time find the switch for the clutch. The one on mines is recessed in the hole I can push the switch with a small screw but wondering why it isn't sticking out so the clutch lever can push it in. I will be redoing all the wires just to make sure they are wired correctly. Can someone direct to a site to get the safety interlock switches PTO and clutch would like to order replacements just in case. Share this post Link to post Share on other sites
raven2955 23 #30 Posted January 25, 2019 Can't find the PTO Clutch interlock switch for the clutch, I think I will need one because the switch on mines is recessed inside the whole no way for the clutch lever to depress it The wires were cut and disconeected fro the Pto switch looks like they were connected directly to the solenoid . I will need to re-wire If anyone has a site on-line where I can get the switches would be appreciated Share this post Link to post Share on other sites
BOB ELLISON 2,981 #31 Posted January 25, 2019 This is the wiring diagram I redid to help me . Hope it helps you 3 Share this post Link to post Share on other sites
BOB ELLISON 2,981 #32 Posted January 25, 2019 You can bypass the pto switch just to get it running. But you really do need that switch for safety. AZ has them and others here will chime in with an answer as to where to get them. Share this post Link to post Share on other sites
BOB ELLISON 2,981 #34 Posted January 25, 2019 3 minutes ago, raven2955 said: AZ? In the vendor section. https://www.wheelhorseforum.com/forum/169-a-z-tractor/ 1 Share this post Link to post Share on other sites
BOB ELLISON 2,981 #35 Posted January 25, 2019 8 minutes ago, raven2955 said: AZ? In the vendor section. https://www.wheelhorseforum.com/forum/169-a-z-tractor/ Here is there Web site http://a-ztractor.com Share this post Link to post Share on other sites
raven2955 23 #36 Posted January 25, 2019 Went to A-z tractor tried to search for Clutch pedal switch, clutch PTO safety interlock switch no luck Is there some other name i need to use Share this post Link to post Share on other sites
raven2955 23 #37 Posted January 25, 2019 Will call them tomorrow 1 Share this post Link to post Share on other sites
BOB ELLISON 2,981 #38 Posted January 25, 2019 (edited) 41 minutes ago, raven2955 said: Will call them tomorrow I don't know them by any other name then the interlock switch or safety switch. I do know they also went on a early jeep as a switch. I just found this in my notes. 101845. INTERLOCK SWITCH for PTO & CLUTCH. Use on B80-C160 ( Replaces Gravely 034640 Scag 48021 Simplicity 1654634SM 1654634 Snapper 1654634 1654634SM Toro 284250) Crown Automotive J5751207 Backup Light Switch for 80-81 Jeep CJ Series & 81-90 SJ & J Series with T176 or T177 4 Speed Manual Transmission Edited January 25, 2019 by BOB ELLISON 1 Share this post Link to post Share on other sites
oliver2-44 10,567 #39 Posted January 25, 2019 I just checked and internet vendors Partstree and Pats Small Engine have them new, about $50 each. Use there parts look and in the drop down menues select Toro/wheelhorse riding products 1975 c-120 electrical this takes you to parts schematic and list Share this post Link to post Share on other sites
ebinmaine 71,804 #40 Posted January 25, 2019 6 hours ago, raven2955 said: Will call them tomorrow That's the thing to do right there. Lincoln is a great guy. FYI.. I don't have much luck finding things on his website so I ALWAYS call him instead. (I don't have much luck on a lot of websites) He knows his inventory pretty well off the top of his head and also has a lot of knowledge of what belongs where. It may be a good investment in your time to: 6 hours ago, BOB ELLISON said: bypass the pto switch just to get it running That way you know it runs and drives and then you can add the PTO safety circuit in separately. On the foot clutch switch area be sure to check side to side adjustment of the pedal. There's a locking collar that holds it in the correct place. 1 Share this post Link to post Share on other sites
raven2955 23 #41 Posted January 25, 2019 ONCE I CHANGE THE SWITCH i WILL . The problem is when i turn the switch I get nothing. Now that I know the safety interlock switches were by-passed . I want to see what happens with the right switch and go from there. Thanks again!! 1 Share this post Link to post Share on other sites
BOB ELLISON 2,981 #42 Posted January 25, 2019 10 hours ago, oliver2-44 said: I just checked and internet vendors Partstree and Pats Small Engine have them new, about $50 each. Use there parts look and in the drop down menues select Toro/wheelhorse riding products 1975 c-120 electrical this takes you to parts schematic and list Less then $20.00 shipped at Amazon Part # J5751207 1 Share this post Link to post Share on other sites
raven2955 23 #43 Posted January 26, 2019 okay, so I replaced the ignition switch today. The engine tried to turn over from turning the key. That was an improvement, thanks again for letting me know that I had the wrong switch. Engine still doesn't fire up. I used test light on solenoid from battery and from solenoid to Starter (while turning key to start it. Good light for both. I used 3 different type in-line spark testers. Getting spark to plug . (spark plug is new). Now I am wondering if rectifier-regulator might be the next step to test? Share this post Link to post Share on other sites
953 nut 59,216 #44 Posted January 26, 2019 9 minutes ago, raven2955 said: wondering if rectifier-regulator might be the next step to test? Not yet! The rectifier/regulator just charges the battery for you while the engine is running, has nothing to do with starting or ignition. If you haven't done so, clean and tighten all if the electrical connections including grounds then see if the starter performs better. Will it turn over better if you take a jumper from the battery "+" to the starter? Share this post Link to post Share on other sites
raven2955 23 #45 Posted January 26, 2019 Did the jumper test, will start cleaning connections and cleaning grounds. 1 1 Share this post Link to post Share on other sites
tunahead72 2,536 #46 Posted January 27, 2019 Before you get too much further into your troubleshooting, how strong is your battery? Check the voltage, if you don't have at least 12.6 volts, I would put it on a charger to get it more fully charged. You might be able to get away with less, but a weak battery can certainly cause starting problems, and sometimes other goofy, hard-to-understand issues as well. 2 Share this post Link to post Share on other sites
raven2955 23 #47 Posted January 27, 2019 yes I have put a charger on it several times. I am also wondering what would happen if I put starting fluid into the Spark plug port since its looks like I a getting spark to there. Will also continue cleaning up the electrical wait for Clutch switch a new harness. Since prior owner bypassed not sure what else so restoring to original state is important to me. 1 Share this post Link to post Share on other sites
wallfish 17,848 #48 Posted January 27, 2019 Don't use starting fluid. Just a little gasoline will work fine. Or spray a little carb cleaner or gas directly into the carb. 2 Share this post Link to post Share on other sites
raven2955 23 #49 Posted January 27, 2019 She started !! Closed choke all the way after putting a little gas in spark plug port. The engine turned over. When switches arrive will be the job of getting wiring done as PTO switch wires are completely missing. Could be the fact that it is really cold but notice smoking from fins. will need to check to see if running hot or too lean. But she fies up. 2 Share this post Link to post Share on other sites
raven2955 23 #50 Posted January 27, 2019 I think the wrong ignition switch was the main problem here. Thanks for help with that 2 Share this post Link to post Share on other sites