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Have heard the newer b pipes have a larger i.d. manifold and headpipe. Can anyone take a caliper to measure one that's fairly new and unmodified to confirm that? My older b pipe, probably from the late 90s or early 2000s measures exactly 44mm

Yeah I definitely will just didn't have one, should have ordered some in that range

I was messing with this today with a ss ported 735, dry pipe, 48 novis. Started with 60 jet. Had about 3-4psi at idle, and it remained right around that range with 70 and 80 jet (closer to 3 with 80). Ended up trying a 140 jet and this got me within the 2psi range at idle-2500. And it did...

That's the max clearence allowed. If it's too tight and the prop drags the wear ring then yes it's a problem. I have seen that. I always spin the mid coupler before setting engine in to check for drag. Running a/m mag pump No drag and at 9 thou is good

Interesting. I have heard the older stock ones were better somehow

Yeah I agree with that, The main benefit of going to the a/m box on a smaller engine is the weight savings

I dont have one on my ski, but I have heard 2 superjets with jm box and it was noticeable but not crazy loud like a race boat with a triple or something.

Modified water box probably isn't worth it. Get a jet maniac water box if you want to go with something more free flowing and lighter.

You're good.

A hardware kit for a dasa intake might work, they sold me one a few years ago, includes the 4 studs and Allen bolts

Yeah have to nail the start and stay strong the whole way.

Race superjets in mod classes are still capable, a local buddy won a race last year in vet ski open with a superjet against 1500s, triples,etc. (Sorry to de-rail)

That aluminum prop is the biggest pile o'garbage part ever. They started putting stainless ones in at the factory in 08 and for good reason.

here's my set

It's not hard to make a set yourself. You need 1/4" steel plate and about 1/8" thick sheet of rubber. Make a template and start drilling and cutting. If you can buy matco tools, they sell a quick dial pressure/vacuum pump. I bought one and have not even had a chance to try it on a pressure...

Disconnect battery after every ride. It helps preserve them

Calling dibs on this! Pm me please

+1 to impros. They do good work with impeller repitching and finishing

Ask him if he packed the new ones with grease. If not the seals will fail prematurely and it might explain why the rear plug looks so lean.

Were the seal lips packed with grease when you replaced then?