Sea-Doo VTS Motor and Module Repair - Gray Ghost Resurrection

In this video I bypass the failing VTS module with an 451M relay. Wiring and bench testing all explained here. Resurrecting a Seadoo 97.5 GSX Limited aka the Gray Ghost. This was the first year of the big 947/951 Rotax Engine.
Here is the part:
Install Essentials 451M Dooor... www.amazon.com...

[@patrickbell3446]

I learned something new today. I will research what a 451M relay is next. Thank you.

[@aubie3425]

Thank you for spelling out how this works. Not sure why this relay is so confusing on all the forums and groups.

[@jonparkmac]

Yeah I know ..took me a bit of research to finally grasp how it works and the cleanest way to splice it in. I'm glad this helped you

[@Screecherdrone]

thanks for doing this . Saved me money and time on my ski

[@jonparkmac]

Glad I could help

[@mikewilliams9715]

I'm rebuilding mine on a 96 spx. I depotted it and found it has 11 reed switches and 11 14 ohm resistors. It seems the 1st and last are for a limit on up/down. I have some appropriate relays and am waiting for some pc board and some parts to come in so I can build one and repot it. I'm planning on using 2 normally closed reeds for the travel limits and normally open for the guage. The resistors are in series and the switches add the resistors as they close one at a time with the magnet on the actuator rod.

[@jonparkmac]

That sounds fantastic. I saw the circuit diagram once and it was very simple. How did you go about the depotting ?

[@mikewilliams9715]

@@jonparkmac boil it pick at it....boil....pick..repeat

[@floop93]

True, first and last one are limit switches. Hot air and screwdriver works as well ;)

[@BarryHolbert]

What a great video!!!! Thank you for doing this! Quick question,,,,Did you plug the two wire connector (maybe red/black) back in or is it just abandoned? Thanks Again!

[@jonparkmac]

Yeah, I regret not showing how I spliced. I spliced into the vts side harness only. The 6 pin and 2 pin connectors remain plugged into main harness. Those two wires carry the motor power, so they map to the larger wires on the relay. You have to run the other two large relay wires to the motor. I put a hole in the vts housing for that. The 6 pins go to the sensor for the gauge, and to the small wires on the relay. The tricky part is the blue/green small relay wires and blue/green on the 6 pin need to carry ground, not positive

[@marcfranche5727]

Very nice description 👌 on that video.where did you get the wiring harness and relay. And how many pins does the relay have.

[@jonparkmac]

Got m451 relay from Amazon. I think I described all the wiring. You do not need a wiring harness but you do need to splice into the VTS cable

[@jarrodzimmermann3567]

Great video. What is the exact 451M relay. I am seeing many different ones on Amazon.

[@jonparkmac]

Here is the one I use. Install Essentials 451M Dooor... www.amazon.com/dp/B0009SZHR4?ref=ppx_pop_mob_ap_share

[@chadroby7972]

Any chance you have video of how you mounted the relay? Im expecting it needs to be protected from the moisture these things are known for.

[@jonparkmac]

I'm afraid I don't, but what I did was mount it directly onto the back side of the vts up high and sealed all the entries into the relay with black rtv. I carefully zip tied all the wires together so nothing moves. Best I could think of. Putting it in a little box you'd have to seal that up too ..so that's why I just sealed the relay itself

[@hansski1995]

Where did you get the wiring schematic? Is that from the original factory wiring or the part you bought?

[@jonparkmac]

Hey brother, it's from the free manual you can download. Factory for ski. You have to study it a little. Every one has a diagram toward the end. seadoomanuals.net/

[@dhern2613]

Hi guys, the 451m relay upgrade. Is that relay a door actuator relay?? That is what is coming up when I look up 451m relay on ebay

[@jonparkmac]

Yes. Used for door locks and I think even for windows in some cars. It's a simple device with the small wires controlling and large wires delivering power. Green and blue are up/down. You also need a self resetting fuse on the red power wire. I used a 3 amp.

[@jeanvega9367]

If I do this can I also get an aftermarket momentary switch for the vts on the handle bar? Thank you Great video

[@jonparkmac]

The stock switch is already a momentary switch. I wired this so the entire rest of the ski and harness is stock and untouched.

[@warrenibbotson9181]

Genius!

[@jonparkmac]

I learned from others ..just passing the how to along ..thanks for the comment !

[@thomaspaccione8237]

I'm getting ready to rebuild mine, however, if the motor now works, and the housing works, why do you need the bypass relay?

[@jonparkmac]

If it all works then no it's not needed. Relay is only needed when the module inside the vts stops working. It's a relay too

[@chrisharmon1667]

The ground from vts harness has to go to battery ground for this to work on a 96 xp !

[@jonparkmac]

You should be able to pick up a ground in the harness. After all, the oem vts gets it's ground (and everything else) from the harness. So shouldn't need extra wires anywhere.

[@chadgrahovac6308]

I replaced my trim motor on my 07 rxp 215 seadoo. It will only go down and not up. Any ideas? Thank you

[@jonparkmac]

Not sure on that model, but I'd start by switching the up/down wires to tell if it's the module/motor or the switch.

[@juniordiegues5090]

Hello friend !! I'm rebuilding the VTS circuit board!!! I need the electrical diagram like the one you used!! I need to know what the purple/white wire is for!!! I think I already found the others!!! can you help me ? thanks !!!! sorry for the translation but I'm in Brazil!!

[@jonparkmac]

You can find the manual online and the wiring diagram is at the end. Here's one for 98 I used. seadoomanuals.net/manuals/1998-seadoo-shop-manual.php

[@jonparkmac]

I think pu-wh is the positive power signal from the mpem wake up. The re-pu-wh is full 12v power to drive the motor via business end of the relays

[@rickgonzalez907]

Could this make my jet ski not to start? I had a blown fuse and I replace it something started to smoke

[@jonparkmac]

No, not normally. There's two vts connectors you can unplug. One is a 2 wire, the other is 6. Disconnect both and see if the ski runs

[@dmaurieblackburn9250]

Did this fix your ski?

[@saltrocket1909]

My vts will work for a minute then quit. I installed two relays thinking the old ones were weak. If i get the 451 module do you think it will resolve my issue? Struggling here, any help would be greatly appreciated. Awesome video!

[@jonparkmac]

Make sure your motor itself is reliable and the screw drive isbnot bent and hanging up. The plastic drive can become bent. Then check connections real good especially ground ..they often have dedicated ground to motor. Polish that up and reattach. If it still does it, check voltage on BOTH the red wires. One is motor the other is relay. They are both on when key is on. If that's all ok, yeah module is going bad.

[@saltrocket1909]

@@jonparkmac perfect thank you. I verified motor does work with 12v. It doesn’t ever fail. Have the 451 module coming Thursday. Ill check what you mentioned first. Really appreciate it!

[@jonparkmac]

Happy to help. If you are on FB you can find me and IM me for help. Not many truly know this area I found out.

[@saltrocket1909]

@@jonparkmac I don’t have power to my red/ white with koeo. Fuse is good. I don’t see another red wire though.

[@saltrocket1909]

@@jonparkmac the box is upside down in ski so i was looking at the wrong fuse. Replaced blown fuse and it works until i max out in one direction. I installed the two relays someone posted a diagram of. Trying to figure out how to get around the fuse blowing.

[@PESTEDOHORTO]

Cade a parte 2?

[@jonparkmac]

Osdmarine for seals and Amazon for relay

[@dozer8065]

why fix this junk... auction material.

[@jonparkmac]

Nope. These used mpems are expensive. Easier to fix this way for $10. It's a common repair. If you know, you know