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Delete the AP and rejet for the FA. I remove that bulky airbox on all my skis, especially 951s because it makes carb tuning a PIA. Stock skis it doesn't really matter, just leave it since you wont be tuning all the time.

No problem deleting the oil pump just loop the RV lines. I dont think anyone uses the oil pump on modded skis.

Take it apart and see. If its OEM, you can replace the oring.

most skis are 8mm or 12mm

787 Parts: 1- 1x New WSM .75 over piston kit - $70 2- Complete grey ebox with programmed key, excellent condition no corrosion- $300 3- 140mm Brass Jet pump, bearings spin smooth. $60 + shipping 4- Core 787 crankshaft to rebuild - $40+ shipping 5- Magneto cover with stator and pick up - $80 951...

I can test mine this week for you but will be a few days before I can get to it. I had a similar issue with my 96 XP a few years ago. I tested everything and it turned out the MPEM just randomly failed. If I remember correctly, my CDI had some weird readings compared to the service manual but...

These forums are kinda dead. You'll get more help on something like this through the FB X4 groups

I just installed one in a kawi 1100. Just matched the wires on the zeel with the kawi diagram.

I wouldn't. The I series carbs were designed with emissions in mind. If you want to run 44mm carbs, go with aftermarket or SBN44s.

Cool project, curious to see how the 720s do in a boat of that size.

#2 is the gas tank vent out. One way check valve that is directional. #1 looks like the location of the battery vent but not 100% sure since I don't have a XPL.

Do you have the service manual? All the questions you asked are answered in it.

Sounds like a fuel issue. All the info you need is in the service manual.

Just run the reserve line directly to the carb(s) bypassing the fuel selector and water separator. If it runs good then you know the issue is one of those two. If not, then its likely a carb issue or air leak.

Download the service manual and Im sure you can find what goes there

I've had good luck with SBT in stock skis.

If your inner crank seals are leaking then you'll want to block the line that feeds the RV. The one with the filter goes to the oil pump.

The stainless steel piece should spin with the driveshaft. Replace the 2 orings and the c-clip while you have it apart.

Stock motors are best left with the oil injection. If you're running a built motor, premix is the way.

Just the pump shoe from a XPL