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I have a stock 2016 Superjet. I just picked up a used 140mm 12 vane Magnum pump with a 9/17 and a 16/23 impeller. How much horsepower do I need to turn each of these?

What are the effects of setting back the complete pump, say 2"? I mean actually cutting out the intake and shoe and moving the whole oem setup back 1-2". Has it been done before?

I haven't run this setup yet so I'm seeking opinions on the jetting. I have a completely stock/original 64X "760" engine (out of a 'raider) and a Factory Pipe "B" mod pipe (the kidney chamber). FPP doesn't offer instructions on this setup... Am I crazy to try stock jetting? Stock hp is 90...

Anyone know if a stock 760 pipe will fit into a blaster 1? I'm planning a 760 swap / conversion (removing a complete 760 from a 'Raider and putting it into a B1). I did a search and didn't see anything about the OEM 760 pipe fittment.

Anyone ever try one of those Mako brand 650 sx / x2 impellers that are on flebay? I'm interested in replacing the oem impeller on my stock X2. The price of a new Mako looks good, but the last time i purchased an off-brand impeller a blade ripped within 10 hours (eye roll).

Okay I have a complete Waveblaster and a complete GP1200... The 1200 motor is going in for sure but how about the pump? What's it take to put a 155mm pump into a Wave Blaster??? Can I use the original pump shoe?

Anyone know of a website that tells me what the wave heights are on Lake Michigan? I don't want to go out if it's flat...

Check out what happened to my BIL's boat a few days ago. The piston is actually in great shape still! Nothing broke but the head.

I copied and pasted the MSD Enhancer wire connections below my question here (I copied it from the tech FAQ). My question is why do I have to connect the Start/Stop Switch Black Male to the Stator Black Female if they are ground wires and they are already bolted to a ground post? Maybe my...

What's consensus? Are OEM CDI's worth modifying to remove the RPM limiter? I have a 650 cdi box, but a 701 engine. I heard they are only good for so long before they burn out, once the RPM limiter has been removed.

I just picked up a 2005 YZ250F... anybody know how to change the oil? And how much to put back in and what weight to use? It has an oil reservoir in the frame. Freakin' 4 strokes :slap:

Updated pictures: I think it was lack of lube. We switched the ski to premix and it seems to run fine. It was a WRIII, so I doubt it injested water.

Check it out, it's sweeeeet!

Jeff, your mailbox is full!!!! Call me!

I just talked to Jeff, my hull will ship out this week. Here are some pictures that he sent to me today. He calls this hull F1-Pro. It is based on my favorite ski the FX-1 but it has cleaner body lines and it utilizes the Superjet pump/pump shoe/intake grate/intake tunnel. The pump...

Personally, I'd go with an aluminum exhaust tube, it does seem more robust. But for cooling lines, Jeff's method is the best I've seen and I'll explain why. Number 1, that tubing will last forever. There are absolutely no worries about the durability of the tubing. It is very stiff and...

What happened to him???

Do all the Mikuni carb seats (1.5, 2.0, 2.3, etc.) use the same needle?

Anyone ever shipped a ski to Canada? Who did you use and how do the import taxes work??

Can I use weisco wrist pins in OEN pistons? What do the washers that go next to the bearing cages do?