1994 XP worm screw access

[ahfvet]

We have revitalized a pair of 1994 Seadoo XPs and have purchased the TrimFix to install on them this weekend so we have the ability to adjust the trim again. The VTS motors have been tested and work fine. The issue we are concerned about is access to the worm screw so that we can modify it to prevent over-travel (which the installation of the TrimFix bypassing the MPEM apparently requires). Since this model has its VTS in the front of the hull, is there a way to access the worm screw for modification without having to remove the entire motor and motor mounts? Thanks.

 

[AKnarrowback]

I'm not familiar with the trim fix. From the little I have looked into it I thought it was for the 95 and newer design where the control module was prone to getting water inside. Are you sure you need it for your machine?

With that being said. Getting to anything motor related on the 94 xp trim is going to require you to pull the motor assembly free from the hull so you can access all sides of it.

I'm interested to learn more.

 

[ahfvet]

Thanks for the reply. We got the TrimFix ( Seadoo VTS Trim Fix ) unit installed on both skis this weekend - it actually works great! Totally bypasses the MPEM and now the VTS works perfectly again. We are just going to skip the worm screw modification part and be super careful not to hold the switch button down past maximum, so that it won't try to overtravel and damage the VTS motor. Seems much more involved than we are comfortable with to dis-assemble the entire VTS motor just to get to the worm screw...perhaps the later model rear-mounted VTS worm screw access is different.

 

[POPPS]

You need to remove the pump with nozzle attached (gives you something to hold on to inorder to pull the pump out),
so you can remove the large hex nut that secures the trim module.,,When
you reinstall the pump, remove the nozzle first, this makes it way easier to mate the drive shaft to the pump/prop.,,then attach the nozzle.

 

[mikidymac]

You need to remove the pump with nozzle attached (gives you something to hold on to inorder to pull the pump out),
so you can remove the large hex nut that secures the trim module.,,When
you reinstall the pump, remove the nozzle first, this makes it way easier to mate the drive shaft to the pump/prop.,,then attach the nozzle.

The trim module on this one is cable operated from the front not the box in the rear like the newer ones.

 

[Latitude55]

We have revitalized a pair of 1994 Seadoo XPs and have purchased the TrimFix to install on them this weekend so we have the ability to adjust the trim again. The VTS motors have been tested and work fine. The issue we are concerned about is access to the worm screw so that we can modify it to prevent over-travel (which the installation of the TrimFix bypassing the MPEM apparently requires). Since this model has its VTS in the front of the hull, is there a way to access the worm screw for modification without having to remove the entire motor and motor mounts? Thanks.

New to PWC. Can you tell me how you tested your VTS motor. Thought I just had a bad switch but changing them out did not solve the problem. Thanks for any help.

 

[ahfvet]

Not sure if this would work for every model but here's what we did on our 94 XPs. We disconnected/unplugged the VTS motor wiring harness from its connection coming from the MPEM and applied current from the battery directly to the VTS wiring input plug. If the VTS works, the motor should turn and the trim will go up or down (depending on the polarity of how you attach your leads). We used an ohmmeter to test our switch wiring continuity. When both were good, we knew that meant the reed switches in the Trim Module was probably the cause of the VTS failure. Enter the bypass of the Trim Module with the TrimFix. Hope this helps.