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Because carbon causes galvalic corrosion :biggthumpup: You wouldn't save much weight with carbon fiber, maybe 5-8 pounds MAX.

All you guys need to know is that it's a new setting on Jeff's chopper gun, and he won't build a carbon fiber hull :Banane01:

That 148mag pump has a LOT of steel in it, I weighed one and it was around 25 pounds. Stock pump feels like a feather in comparison.

I wonder how long you'd be w/o a hull :banghead:

The FX-1 chamber is pretty much like the Superjet mod chamber. It has the same size fat part as the mod, but the overall length is the same as the limited. It's straighter along the outside to fit in the FX-1 hull.

usually I can beat the start/stop switch around a bit and it'll start working again.

There are only 2 things I've ever had to fix on my Yamaha's for no spark: 1. start/stop switch (although usually when this goes bad it stops turning over). 2. CDI box.

Are you going to replace the seals?

There's a good amount of space between the side of the pole and the hood, check the pictures.

If that's the engine I sold you, I was running one of those small billet couplers on it... never had a problem though. If you wonder what's inside, send a pm to zforce227 on the old board, he assembled it. Good luck! How's it run??

Jeff makes it, it's supposed to be like 6 gallons or so.

GP800 engine with like an 88mm bore (on resleeved cylinders). You can take the stock bore to 927cc. Unfortunately Jeff is the only one making a pipe for it :banghead: :banghead: :banghead:

Someone did some nice work on that short chamber, it doesn't even look like the blaster mod chamber.

Which cases and what are your other mods? Stock jetting on a single 44 and 61X cases is only 135/115/1.5/115g.

It's one of the X-Jet bottoms.

That looks dangerous :biggrin:

I would raise the popoff. Actually I would start with the stock jetting and work from there. Not necessarily related, but I think you have way way too much water going into your headpipe. I would close the bottom and mid, and only open the top. That's how I run mine, and they don't need...

The stroke is stamped on the crank webs, look for the number.

:woot:

No. What's a kidney valve?