couple 250sx wiring questions...help please

[jinxd12]

I have an 86 250sx I believe, I've been going through all the wiring and found a few crappy pieces. Anyways after checking continuity through each circuit I realize I have continuity between 2 that I don't know if I'm supposed to?

It's both circuits that go to the starter relay, red yellow and green/red? The green red goes through the cdi and neutral saftey switch then up to the dash, and the red yellow goes to the start button, between ALL the connections everywhere I have continuity, this is with the cdi unplugged.

Am I supposed to have continuity through the starter relay on these 2? It's not making sense to me.

[jinxd12]

Anyone, please?

[Flyingw]

Unless you unplug everything in that circuit then yes, you will have continuity because of the starter solenoid. The starter solenoid is a coil and you will read continuity on each side of the coil. The neutral safety switch provides a ground to the starter solenoid and neutral light. Pos battery power is always sitting on the neutral light and starter solenoid. Its the ground that completes the circuit.

[Flyingw]

You will also read continuity through light bulbs because of the filament.

[jinxd12]

Cool, I actually got the trike running today! The wire going into the voltage regulator harness plug was disintegrated so I put in weather proof connectors and traced a few more wires down.

I'll be sure to scroll this forum for more info for sure

[Flyingw]

Sounds like you have things well in hand. You'd be surprised at how many guys can rip apart a motor in their sleep but when it comes to wiring and electrical systems can't deal with them.

[jinxd12]

I'm an electrician so unless it's tons of resistors or untestable electronic parts I can handle it! It's the timing of the motors that always gets me.
Now I just need to source some parts for this bad boy, so I can't get it into trails shape!

[Flyingw]

I'm an aircraft electrician/avionics. Since you are electrically skilled, here is a link to OEM style connectors. Be sure to get the blue crimpers. Ive bought 3 different kits. Great stuff to have around when working on wiring. Go to the kits button.

http://vintageconnections.com/

[Flyingw]

What parts are you looking for?

[ps2fixer]

I'm an electrician so unless it's tons of resistors or untestable electronic parts I can handle it! It's the timing of the motors that always gets me.
Now I just need to source some parts for this bad boy, so I can't get it into trails shape!

What parts are you needing? I have had one 250sx I parted out so I might have some of the stuff you need. Also some parts from the 250es big red interchanges and I have parted a couple of them out too.

Also, not to fight over brands or anything, but I have had good experience with http://cycleterminal.com/ as well for factory style plugs. They are my source for the harnesses I make.

If my memory is correct, the 85 250sx has a CDI plug that is round with 6 pins, the 86/87 years were a 4+2 plug, where it has 2 separate connectors, one being 4 pin and the other 2 pin which basically all modern atvs use now. Besides that, the year *should* be on the neck of the frame. 85 and 86 had some changes, I personally check part numbers on partzilla.com to validate interchanges.

Talking about careers.. I'm a jack of all trades, but my last couple of jobs were database administrator and workstation tech. Didn't get to build/troubleshoot boards much, more of a replace the whole unit, but at home it is a different story.