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Today I had my coupler cover off and was checking some stuff. My alignment could be tuned up a bit but I have seen it much worse, anyway I fired up the ski and there didn't appear to be any abnormal vibrations, but after a quick 20 sec run the mid shaft was really hot to the touch. I don't know...

Post stuff about your pump setups here if its not too much of a secret. We were just talking again today. A few guys pulled their 155 pump setups out that they were using stock length superjet shafts in and realized they are not getting full spline engagement. Her is the picture comparison, I...

I am just curious to hear from those that have run no intake grates and what are the gains or downfalls of the setup. This is the intake from my wdk x jet i am working on. Somone has put some stainless slats in there that basically fell right out. I was going to glass something similar in there...

Picked up this waterdawg xjet from @brentR. I needed a replacement for my tired old square nose and something I could put the 155 pump in I have here. I am not quite ready to pull the trigger on a new aftermarket hull, so this should be a good in between. I don't normally do build threads but...

When the flywheel key sheared off the nut decided to make a quick exit.

Does anyone have an old total loss system for a 550 kicking around that they would like to sell

my 550 will kill a battery in less then 24 hours just sitting in the garage.It runs fine so I have just been pulling the positive but I would like to find the problem. What could be pulling the charge

How much have people decked off the bottom of their 550 piston port cylinders? how much is too much? whats the min squish fo pump gas?

What jets are people running in their 440s with a single sbn44. this ski is running stock bore and compression with a prop and a pipe.I've read the standard mikuni jetting of 100 pilot, 125 main, 2.3 n/s with a 65gram spring for a pop off of 15psi is a good place to start. let me know what you think

Just wanted to share some pics of my 550. I just finished a budget rebuild on the motor after melting a piston at the end of last season. I didnt want to sink alot of cash into it so i found some pistons on fleabay for 20 bucks each with rings. i had an extra cylinder with a decent bore at 1.5...