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Tuning is time consuming and you only learn by trial and error. Reading stuff on the forums is helpful but it's just a lot of personal experience needed. Pump tuning is quite an animal to get just right. Yes. Buy the pipe, carbs, exhaust, and prop they recommend. I personally run a php 898 and...

How do you think we all learned man? If you own a freestyle ski you pretty much have to be your own mechanic. There is no part of building a ski that's really difficult. It just takes time. There's also a repair manual that walks you through every little thing you can imagine. You don't need...

Well then man I think it's time for you to get a full carbon revolver!

Either buy an already built, tuned setup or do exactly this.

I'm with BK, this might be tough as hell or maybe you get really lucky. Cosmetically it might not be ideal but maybe the new rise hood is the same seal dimensions?

How much do you weigh? What's your current setup? Main gain from total loss is the programmable timing curve, but MSD and MS01 also have a stronger spark which helps too. Not to mention you get a much lighter flywheel for faster throttle response. There are a lot of good freestyle hulls out...

If you like to do a lot of sustained wide open I don't think a motor with big pistons is really recommended. I would look into a stroked 800cc on a 760 or 701 cylinder. I think @Jr. Can do a stroker with a stock cylinder.

@KMN and @SmittySX both have comp 900 dvxs that can combo as long as you can hold on, if you're looking for a capable freestyle ski.

Get a lightweight, new modern technology carbon hull and some total loss. Will be a massive upgrade and not affect your reliability. By pump being unhooked-its really only a problem with new riders which sounds like you are not. What slightly used setup are you looking into? Some of the comp...

@DrewOregonian what did you decide?

I'm sure HSI stocks some bun parts but if you're going for reliability and product support I would choose xscream if you want to go the 1200 route. It's a tried and trued setup with tons of info on how to set it up from multiple people. With the Bun, you're limited to HSI for support. Not saying...

If you're a seasoned rider it's probably irellevant, but if you're trying tricks and "shocking" the motor by letting the pump come unhooked and freereving it hard, and then letting it hook at high RPMs can be hard on the crank. It's mostly an issue when learning to do tricks on a freestyle ski...

Looking for black or blue or gray and powervalve shells. Thanks!

I don't think people choose 1200s for their reliability.. What are your riding goals? Are you new to skis or a seasoned rider? I don't know anything about the bun 1200 but the XS is 66e based which uses beefier bearings and rotating components vs say a dasa. I know people get some decent run...

How you set up your pipe, compression, pump, and ignition curve(along with flywheel weight) has a huge impact on whether the throttle response is light switchy. Both 898s I've had have had linear throttle response. That was on pump gas, charging weight flywheel. However I'm going TL this season...

Whats your budget? There's an SS900RR for sale on FB for 3k. A tpe1105 for 5k and a 964 for 4k. New engines are gonna cost you 7-10k Im a little biased but a php 898 is an amazing option if you can find one. I do know someone who might be willing to let one go with little to no hours since Zack...

Have it lightened further by @speedysprocket

Is your charging wheel already lightened? You're not gonna see massive gains just removing magnet weight. Most of the gain is in the programmability of the ignition. If you really wanna see some gains on that setup switch to dual carbs and/or bump your compression and run the necessary octane...

Did you call or message on Facebook? I just got off the phone with him two hours ago...

Did you ask Jeff what he does?