bfrevis 0 Posted July 18, 2023 I am at my wits end. Trx350D has no spark. Changed coil, plug, cdi, no change help. Share this post Link to post Share on other sites
riverc 1,317 Posted July 18, 2023 10 minutes ago, bfrevis said: I am at my wits end. Trx350D has no spark. Changed coil, plug, cdi, no change help. I would look for a broken wire trace all wires looking for a break. Share this post Link to post Share on other sites
bfrevis 0 Posted July 18, 2023 When I ohm out the 2 wires going to the coil, they both seem to be grounded> That can't be right can it. Share this post Link to post Share on other sites
riverc 1,317 Posted July 18, 2023 12 minutes ago, bfrevis said: When I ohm out the 2 wires going to the coil, they both seem to be grounded> That can't be right can it. One of the mechanics will hopefully be able to help better than I can hang in there. Share this post Link to post Share on other sites
jeepwm69 7,719 Posted July 19, 2023 18 hours ago, bfrevis said: When I ohm out the 2 wires going to the coil, they both seem to be grounded> That can't be right can it. @retro is the electrical guru, and @shadetree is the 350D guy Share this post Link to post Share on other sites
Melatv 797 Posted July 19, 2023 Hi: You have to unplug the BL/Y wire from the ign. coil -- unplug the CDI -- unplug the Fuel pump relay - unplug the fan control unit -- then check the BL/Y wire to ground. Share this post Link to post Share on other sites
jeepwm69 7,719 Posted July 19, 2023 4 minutes ago, Melatv said: Hi: You have to unplug the BL/Y wire from the ign. coil -- unplug the CDI -- unplug the Fuel pump relay - unplug the fan control unit -- then check the BL/Y wire to ground. Even better. Melatv is an electrical wizard! Share this post Link to post Share on other sites
bfrevis 0 Posted July 19, 2023 19 hours ago, bfrevis said: Not grounded now. Still i have no spark. Share this post Link to post Share on other sites
bfrevis 0 Posted July 19, 2023 19 hours ago, bfrevis said: Share this post Link to post Share on other sites
Melatv 797 Posted July 19, 2023 Is the neutral light on when trying to start -- is the battery fully charged ? Share this post Link to post Share on other sites
bfrevis 0 Posted July 19, 2023 yes neutral light is on battery is fully charged Share this post Link to post Share on other sites
Melatv 797 Posted July 19, 2023 Unplug the CDI -- check for 12 VDC on BL/W with on the plug with key on Share this post Link to post Share on other sites
bfrevis 0 Posted July 20, 2023 It is getting worse. I was convinced it was the stator. Took it out 1/2 day. Using ohm meter tested it . Each yellow wire reads 600 ohns. So it is not the stator. What could it be? Share this post Link to post Share on other sites
bfrevis 0 Posted July 20, 2023 I have the stator out and waiting for new gaaket. Can i do that test for 12 volts with stator out? Share this post Link to post Share on other sites
riverc 1,317 Posted July 20, 2023 11 minutes ago, bfrevis said: I have the stator out and waiting for new gaaket. Can i do that test for 12 volts with stator out? Start a new thread in the Engine-Drivetrain Forum you may get more help. Share this post Link to post Share on other sites
bfrevis 0 Posted July 20, 2023 Reconnected stator. Checked for 12v at bl/y wire at cdi. No power. Key was on . Share this post Link to post Share on other sites
Melatv 797 Posted July 20, 2023 18 hours ago, Melatv said: Unplug the CDI -- check for 12 VDC on BL/W with on the plug with key on Have you done above as yet? The stator ohms should only be around 1 ohm from y to y not 600 -- may sure the 3 yellow wire plug is unplugged from the rectifier when testing for ohms. Share this post Link to post Share on other sites
bfrevis 0 Posted July 20, 2023 I did and there is no 12volts at bl/y wire. Share this post Link to post Share on other sites
bfrevis 0 Posted July 20, 2023 Doesn't that point me to the stator? Share this post Link to post Share on other sites
Melatv 797 Posted July 20, 2023 Okay 12 vdc -- check the pulse gen. coil for 300 - 360 ohms next Is your ATV a Fourtrax or Forman? The ATV should start without the stator Share this post Link to post Share on other sites
bfrevis 0 Posted July 20, 2023 I get 320 ohms. Trx350d 4x4 Not sure if fourtrax or forman. Share this post Link to post Share on other sites
Melatv 797 Posted July 20, 2023 (edited) Ok on 320 ohms have you tried a new plug -- you can also remove the boot off the spark wire and cut a 1/4" off the wire, put boot back on and try it. Test coil Edited July 20, 2023 by Melatv 1 Share this post Link to post Share on other sites
bfrevis 0 Posted July 20, 2023 I have a new plug, new coil, new cdi. I am not getting 12 volts to cdi. Neutral light is on. Share this post Link to post Share on other sites
bfrevis 0 Posted July 20, 2023 Run stop switch leads are open. Share this post Link to post Share on other sites
bfrevis 0 Posted July 20, 2023 I am getting .6 ohms between yellow stator wires not 600. Share this post Link to post Share on other sites
