C125 black hood 1 #1 Posted March 28, 2021 Hello new to site. Having a electrical issue currently on last leg of complete restoration of my c125 and cannot get power to the start wire on the ignition switch. All new parts and wires good grounds . Have 12 volts from everything but nothing to the red wire witch is the start wire. New pto switch , clutch switch solenoid. Ignition. Pretty much everything is new .not sure what I am missing . Any help would be appreciated. 1 1 Share this post Link to post Share on other sites
pfrederi 18,454 #2 Posted March 28, 2021 Welcome: Is eh ignition switch new??? In any event pull the plug off the back of it. Check for continuity between BAT terminal and S terminal when you turn the key to start. No continuity switchis bad. If there is check the wire from there to solenoid. Share this post Link to post Share on other sites
gwest_ca-(File Mod) 11,323 #3 Posted March 28, 2021 Welcome to the forum. What is your model number so we can look at a diagram. Garry Share this post Link to post Share on other sites
C125 black hood 1 #4 Posted March 28, 2021 Had a new switch in. Took that one out and put another new one in. Thought maybe just a bad new one.12k802. I have ran all new wire to everything . I will check solenoid wire . I have no power to just the one red start wire. I have rewired this tractor a dozen times. Share this post Link to post Share on other sites
953 nut 58,697 #5 Posted March 28, 2021 Your PTO switch has two functions, one is to remove power from the ignition if the PTO is on and you leave the seat. The other half of the switch will interrupt power to the starter solenoid if the PTO is on. If the wires are not placed correctly that may be the problem. Use a test light on the wire from the ignition switch to the ignition coil "+" terminal. With the key ON and the PTO off there should be power there, if you put the PTO on and are in the seat you should continue to have power. Now get off the seat and the power should go away. If that is not the case you have found the culprit. 1 Share this post Link to post Share on other sites
C125 black hood 1 #6 Posted March 28, 2021 I will try that. The seat switch was removed before I got the tractor the wires were just tied together. I just put those wires back the way they were when I ran the new wire. So I am planning on putting a new switch in at some point . Only have the two switches clutch and pto. Share this post Link to post Share on other sites
gwest_ca-(File Mod) 11,323 #7 Posted March 29, 2021 Would this happen to be a 1982-1984 model C-125? Garry Share this post Link to post Share on other sites
C125 black hood 1 #8 Posted March 29, 2021 1981 c125 Share this post Link to post Share on other sites
squonk 43,013 #9 Posted March 29, 2021 Check the Ammeter! Share this post Link to post Share on other sites
C125 black hood 1 #10 Posted March 29, 2021 Yep put a brand new one in. Have good volts on that. All electrical parts are brand new. Except the clutch safety switch got a new one coming. Share this post Link to post Share on other sites
