94 GTX- Wont wake up

[pwgsx]

I acquired a 94 GTX that was told it doesnt run or turn over. I got it home and popped in a new battery and nothing. Jumped the solenoid and it turns over with even 155 compression. I did some digging with the wires and found the 5 amp fuse blown on the mpem. Replaced it and nothing. I then got a new solenoid and still nothing. Not even a click. Since there was a new start and kill switch in the ski I figured the p.o. might have known something was bad. I replaced the switches and still nothing. What should I do next?

 

[Dr Honda]

The 94 starter is controlled via the "Speed limiter". I'm guessing it's bad. Also... the kill lanyard has to be on. SO... since it's been sitting... grab a meter, and verify EVERYTHING electrical.

 

[pwgsx]

The speed limiter is in the cdi/mpem box right? Have to replace the whole unit?

 

[Dr Honda]

It's in the gray box. There's no MPEM in the early skis.

 

[pwgsx]

Correct, in the grey box, but there is a control unit with fuses on it- speed control unit?? , the ignition coil, solenoid and rectifier.

 

[etemplet]

I sure could use some coaching on the testing and troubleshooting of the electrics. Quick and dirty methods too. LOL

 

[pwgsx]

Ok I wired the new control box in ( how he old one was ) and still nothing. Do these pics look correct?

 

[pwgsx]

Tested that all wires are hooked up correctly with the manual. The tether and start switch work. 12 to solenoid. When start button is pressed I get 12 v to the starter but nothing happens. If I press the stop button the 12v to the starter goes to maybe 4 volts. If I jump the solenoid at any time the motor cranks. I’m going nuts. It’s like something is grounding out the starter if I’m trying to use the start button. And ideas?

 

[etemplet]

I am looking for a schematic on the ECM for the 96 SPI. I want to know what all the stuff in there IS and what it does. I tore into my ECM. I think I have identified the culprit. Did I mention how I dislike working with electronics ?? At least you have power... mine blows $hit out immediately.

 

[pwgsx]

I hate electronics and this one really has me stumped. If 12v are going to the dam starter when I press the start button and nothing happens I would say it’s a bad starter. But jumping the solenoid makes the starter work. Wtf??????



Is your popping fuses?

 

[tobytd]

bad start solenoid

 

[pwgsx]

I don’t see how, it’s giving 12v to the starter side when the start button is pressed. The starter does work as it spins if I jump the solenoid.

 

[jjsinaz]

If the solenoid clicks whenever you push the start button, then the contacts in the solenoid are probably shot and you need to replace it. If it does not click, then check for continuity between the two SMALL terminals on the solenoid. If there is continuity, solenoid coil is okay, if not, bad solenoid

 

[jjsinaz]

You can also bench test the solenoid by connecting an ohm meter across the two large terminals and connect the two small terminals across a 12v source The solenoid should click whenever the 12v is connected and the resistance across the two large terminals should be zero or very close to zero. If the solenoid checks out, then you probably have either a wiring issue or like Dr Honda said earlier, the ECM (rev limiter) is bad

 

[pwgsx]

Both the solenoid and ecm are new but nothing fixed the issue. I will test the new solenoid for continuity but it is giving 12v to the starter side. Do you think its something with the smaller posts that is preventing it not to crank?

 

[jjsinaz]

Does the solenoid click when you push the start button?

 

[pwgsx]

No click but my meter does show 12v going to the starter side.......perhaps its not passing enough to crank?

 

[jjsinaz]

How are you identifying the starter side? There are two large terminals on the solenoid with the two red cables connected to them. One of them will also have a smaller red wire connected to it. Make sure the small red wire is connected to the side that goes to the battery. There are also two small terminals on the solenoid. One has a yellow/red wire. This wire should have 12v on it. The other wire is a black/white wire. This wire should also have 12v on it until the start button gets pushed. Whenever the start button gets pushed the BL/WH wire goes to ground through the lanyard switch and the stop switch to the ground post in the electrical box. quick test would be to jumper the terminal on the solenoid with the black white wire directly to the ground post in the electrical box. The solenoid should close (click) and the starter should crank. If it does, then I would suspect problems with either the starter switch, lanyard switch or stop switch or the wiring between them

Just make sure you connect the jumper to the terminal with the black white wire. If you ground the terminal with the red/yellow wire you will blow the 5 amp fuse in the ECM

 

[pwgsx]

Battery side has the constant 12V with the little red wire on the post, Starter side has 0V until the start button is pressed................... I will test the small posts after work hopefully. So the post circled in red should have 12v but I can ground the whole post with wires attached and the starter "should" turn? Or am I just grounding the blk/white wires??

 

[jjsinaz]

Ground the post with the wires still attached to the post right next to the solenoid where the grounds are attached. If that works disconnect the black/white wire and check it for continuity to ground with the start button pressed, lanyard attached and stop button not pressed. Should be very low resistance close to zero. If its not, start checking that circuit to see why

 

[pwgsx]

Ok I have 12v on both small tabs on the solenoid as well as on the battery side. If I ground the post with the black/white wires nothing happens.

 

[jjsinaz]

Then it sounds like a bad solenoid to me

Also, did you check for continuity between the ground post and the negative terminal on the battery? A bad ground would cause this not to work as well

 

[pwgsx]

Yes, it tested ok. I ordered a oem sea Doo noid, the newer style with the adapter harness. Should be here Monday.

 

[pwgsx]

I put the new solenoid in this morning and still get nothing. It’s putting 12v to the starter side when start button is pressed but nothing happens. As I am messing with the wires I see a white spot in a bundle that’s coming from the coil cover on the engine. Low and behold I find a solid white wire that looks like it was cut. I pull it out to expose it more but where does it go? I’m looking at the wire diagram but nothing shows a white wire.

 

[jjsinaz]

Might be the same harness they used in the XP that year, I see a third wire coming from the magneto on the XP wiring diagram. I don't think this is your problem though