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The onlt bad thing I can say about the carbon faced valve is that the carbon gets some little grooves worn into it from maxing out on the outer ring when it's opened. It certainly doesn't effect the working of the scupper, but you know?

I have a mate who has a pretty much bone stock SJ with a limited pipe and flame arrestors. The low speed jet was pretty much spot on, but he is now at a 152.5 on top, and I'm pretty sure he's going higher. A 2.3 N/S was used as well. I guess you just have to tune for what your happy with...

That works, but it's almost a waste of time, simply becuase you know that the bendix isn't engaging properly, otherwise it would be spinning the flywheel. Very handy for seeing if your bendix is sticking out though. I'm betting that it's the starter. Rule out the bendix by soaking it in...

My first point of service would be the starter motor. Quite often, a buildup of junk from the starter brushes can cause erratic behaviour. Also, while you've got it apart, pull the brushes out and make sure that there isn't a crack in the copper bracket that connects the two pairs of...

I have dealt with Chris @ 24-7 in the past, hell, he was the first person to ship a part to me internationally! Chris, good luck in your future endevours, not that you'll need it. I remeber thinking while going through the evolution of your website what a talented bloke you must be to have...

Guys, I'm after some torque specs for a Riva girdled head. I found some on pwctoday, but they don't seem to be working too well! For some reason, I keep blowing compression o-rings, so I'm thinking my torque is a little low. I have no deto, as I like to run things nice and rich. I don't...

Not the best quality pic, but you get the idea...

Yeah, I got my boots yesterday here in Australia....damn that was fast!! Mighty fine seller right here! Thanks!

Here's the way I learnt to carb tune... You have to start somewhere with your jetting, so generally you are going to have some reccommended specs. Start with these. Tie the boat up to a dock or trailer so the pump can be fully loaded (even at WOT) and start the ski and let it warm up...

I cut mine down about an inch all the way around. When you do that and turf it with no foam, it looks pretty trick!

I've got a bit of a question about this too. I recently got a new bendix, basically one of the ebay ones but from a local source and found that it doesn't throw out properly. It was basically just spinning (even with the crank side thrust washer installed. I pulled the bendix and put...

I think I speak for a lot of people (including the Aussies) when I say that we should be thanking you! You've put so much time, effort and support into this sport, and you're always there on the front line cheering people on. We don't have thinksgiving in Australia, but happy thanksgiving to...

Just for reference, at sea level with 35cc Riva domes/head, I see 160psi on a less than average guage.

I use one of the blowsion straight levers. I really like the feel of it and it looks pretty trick. It's great for tricks where your feel are using the throwttle as it relatively flat. The only fault I can find with it, is that you don't quite get full throttle before it bottoms out on the...

From my experience, the Yamaha manual pretty much excludes sny warranty anyway! I'd just fix it myself, as a lot of dealers out there are useless anyway.

It's a good thing you have to be there to claim the prize, otherwise I'd buy a ticket or 2 myself! This is a good thing, and I'm glad the aftermarket companies (Jeff in this case) are getting on board with this. I just hope everyone is happy for the winner. I'd hate to see it get all...

Getting the ski's in and out on those rocks would be interesting, coz lets face it, when was the last time you saw a Japanese guy that weighed in hefty enough to muscle a ski up the rocks?

I just got some 82mm through Nik's. They're normal pro-x pistons, and at a pretty good price too.

Ok, I'm gonna throw a spanner into the works here. Although I've used Wiseco, Pro-X and Sudco's with no problems, has anyone used these, or is it best to forget about them all together...

I'm also interested to know how this would differ with a second cooling line coming in from the pump?