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Dunner

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  1. Hey Folks! Managed to source new Genuine Honda parts locally. Swapped in the new Voltage Reg/Rec and CDI along with a fresh battery and what do you know?! We had spark and she fired right up. I'm beyond happy to this resolved and very thankful for the help. Now onto new fuel lines, brakes, wheel bearings, and all the light-bulbs that blew as a result of the over-charge situation 🙂 Glad to have this forum available as a resource! I hope this thread helps others who run into similar problems.
  2. Fishfiles and jeepwm69: Thanks to you both for the quick reply. Yeah I had a bad feeling about that china Reg/Rec from the start. Will procure some Honda parts and report back!
  3. Hello Folks - Looking for some help to get my '98 TRX400 going again. I've done lots of digging and reading of other forum posts and still haven't figured it out. I'd appreciate any help along the way as I'm not very familiar with these units. I received this last year in non-running condition. The previous owner had experienced a bunch of electrical issues and asked if I was interested in it as a project. I accepted the challenge. This thing has been well loved, likely has been swamped a time or two, but I'm optimistic I can bring it back to life and hopefully have some fun with the kids. From what he tells me, he first noticed that he was blowing light bulbs while riding (head lights, shift indicator lights etc.), but continued to use it without investigating further. Then soon after that the battery went flat, but he could still get it going with the pull start, until eventually it just wouldn't start at all. It's at this point that it got rolled across the road from his garage into mine. I don't have a proper battery for it, but have been using a car battery and jumper leads to crank it over and check spark by grounding the plug to the cylinder head. There is no spark except for an occasional, very weak, zap just as i'm lifting off the starter button. This was tested with a brand new plug. Next I turned to the Stator by pulling the plug off the rectifier and checking resistance between the three yellow wires which checked out within the 0.1 - 1.0 range. CDI was allegedly replaced by the PO just prior to my receiving the unit. Coil resistance was checked and measures in the normal range. Checked through the wiring harness looking shorts and bad connections but haven't found anything so far. I had found this post (Intermittent Spark Issue) and was very excited that it might be as simple as a new rectifier, however after replacing the rectifier I still have no luck. That said, I purchased an off-brand from Amazon, and am considering getting an OEM unit, but wanted to consult here first. Measured 10-20 VAC to the ignition coil leads while cranking the engine. Double checked ignition coil/wire resistance which is good. Still no spark. Wondering next if the crankshaft position sensor is fu-bar or not. Not sure what to check next. Hoping the wealth of wisdom here can steer me in the right direction. Happy to receive any input! Thanks in advance.
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