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2003 Honda 400EX neutral light inop

marioweldinginc

By marioweldinginc
in Honda ATV Forum

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marioweldinginc Veteran

marioweldinginc

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Starting to put my Ex back together since i got the motor back. Most of its together.

Everyone who reads this I have attached a copy of the electrical diagram so you can play along.

I reinstalled the wiring harness. The only modification I did to that harness was to bypass the clutch switch so it will start with out the clutch lever. I have high beams, low beams and taillight. I can also hear the starter relay click when I hit the start button. I verified that the starter will turn. I can only do it VERY briefly as there is NO OIL in the motor. I just held the button for a split second, probably faster than that. The starter did engage.

What i dont have is the neutral indicator light. I verified that the indicater light does work when 12v is applied to it. I am unsure of the condition of the diode inline with the neutral light. I only have a Powerprobe. If you dont know what that is google it. Its very handy.

I did verify that I have 12v at each terminal on of the light (Black wire and Light green with a red tracer) whcih really puzzled me. :aargh: that leads me to believe that its the diode. I also verified that the neutral switch itself does work (physically and electrically) and I see the neutral arm move inside the motor when I shift to neutral. I didnt try to press the switch with it hooked up to see if i get a light.

I cant verify anything because I cant start the quad yet so Im guessing right now. I dont think that this problem will prevent the quad from running. The neutral light harness does go into the regulator which worries me. I would rather the light works as I dont want to chase problems later on. :realmad:

Looking at the diagram what am I missing?????? :aargh:

400EX wiring.jpg

57d7733f3ff8b_400EXwiring.jpg.a3bc6abc26b383a93ffb069717dbc363.jpg

marioweldinginc Veteran

marioweldinginc

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Verified diode is ok. Now what? I checked all connections and made sure all connections where properly color coded. A couple where iffy but seem correct. Will recheck in the a.m. Tomorrow all the plastics go on, fresh 94 octane in the tank, a recheck of all connections and fasteners, then oil and prime the motor. Then gets dropped off at Diggin for the breakin, test and tune. Maybe he knows whats with the light.

Sent from my SGH-T989 using Xparent Blue Tapatalk 2

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