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Measuring yesterday I used 2 v-blocks similar to the picture provided above (thank you, that helps a ton) and was able to measure just less than .020" on a dial across the entire length. I think my shaft is fine (no pun intended) and will reinstall and shim accordingly. In my original post I...

Does anyone have a link to the yamaha service manual describing acceptable driveshaft runout?

That is good to know, thank you

That's a bummer, I can't remember the tolerances off the top of my head but if you pull it out we can measure it. I'm putting a dial on mine tomorrow

I understand, I'll dive deeper into this thing. To properly measure driveshaft runout where should it be measured? I'm assuming just behind the midshaft splines and just in front of the prop threads?

Looking for some input here.. Assembling a 2015 SJ hull, all oem components. I sent in a couch shaft to get shortened to SJ length. pressed into oem stator section with oem wear ring and oem 2015 nozzle. I have been struggling with a vibration issue from the pump area recently. I have...

I'll take 2 of them please

Do you have 1/4" water injection filters like the ones blowsion sells?

Late bump, just a few days until the band snaps I encourage anyone in the fence about coming to stop by and check it out, this will be a great time

Big kahuna has it right, it might be best to slot it so you can try all positions and see what works for you. Mine is about 1° up a the moment and no front sponsons, but I'm still getting this thing dialed in just how I want it

Sorry for raining in the parade, you can look at it like I'm saving you the trouble of pulling the engine and midshaft to align the pump. I learned the hard way

Just an fyi, when you install the 61x nozzle you need to remove your engine and midshaft from the ski to align your pump/driveshaft. I have found that the mounting ears(where nozzle bolts to hull) on the 61x nozzle are slightly thicker that the oem 08+ nozzle. This will create an upward angle of...

@Tread dirt I am the guy with the red/white triple sxr at Lake Stevens. Glad to see you on here, this is a great resource for builds

I agree that putting rear sponsons on an SXR causes the rear end to lift noticeably. I haven't added the rears to mine yet because they havent proven necessary just quite yet. I am also running a leveled older sj nozzle with a prowatercraft rideplate and i enjoy the handling

We tested front sponsons extensively on the sj when i worked at Pro-Watercraft. Long story short, if you run the OEM nozzle, unmodified (pointed upwards) AND the front sponsons, the ski will lift too much on starts and coming out of corners, regardless of sponson placement on the hull. This...

For those around the NW area, check out our first race coming up at the end of the month. WaterX racing is returning to Elma, Washington again this year for a 3 round series this spring/summer. These are region 3/Pac NW IJSBA qualifier races put on by some of the best in the business including...

I understand this is a freeride oriented forum but it looks like we have a solid group of race fans in here as well. For those race fans (and the freeriders looking to check out how the races go down) I invite you all to come to the Pac NW to see how we do it up here. WaterX racing is returning...

If you are looking for a reliable setup to ride surf with I'd go wet pipe with a milled oem head, oem reeds, oem airbox with trumpets removed, rejetted carbs, pump stuffer, and a good handlepole

I use an Indo balance board. Typically do squats on the board, then some simple arm and ab workouts afterwards for strength improvement. While strength is definitely beneficial, endurance is a much more useful trait in racing. Road bikes and running will do more your your ability to finish a...

Bump TTT, still have a few of these