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ADA girdled head with modified 33cc domes for a decked cylinder. Measured 155psi on a tired stock motor that was only 165 out of 185psi with 35cc domes. It had some slight pitting on the top that was filled with JB weld prior to bead blast and powder coat. It not been ran since powder coating...

I'll try the 95 gram and see but the book claims 20 psi on that. I guess I'll try a 95 and try to get it around 16-17.

It is a black spring, the book says 21 psi but my gauge says 19. I have a 2.3NS, maybe I can try keeping the 80 gram black and shoot for 17psi.

The lake test was a success, no drama so far. This thing sips gas, especially without running it wide open. Only managed to burn 3/4 tank. Throttle response was pretty good, I started to get into it more towards the end of the tank. The low end needs some tuning but it really pulls in the...

Thanks for the input guys. I’ll do the easy break in method but I’ll probably be tempted to do a few full throttle blips on the first tank. The expansion chamber is rubbing on the hull at the end of the coupler flange. It’s been like that forever, but my head pipe has already cracked once. Was...

Finally got it all back together. Ended up painting the pole bracket area with an artist paintbrush. Couldn't justify masking the whole ski and messing with the spray gun for such a small area. Did the same epoxy primer, wetsand, paint, wetsand and buff. Turned out pretty good for my first blend...

Never had a problem with that. He has even shipped parts same day that I order late afternoon. Sent from my iPhone using Tapatalk

@JetManiac probably has all of this. He has a good bit of used stuff for cheap too. Sent from my iPhone using Tapatalk

Search expanding nylon wire loom on amazon and you’ll find it. The 3/8 or 1/2” sizes are good for battery cables. Also use adhesive lined heatshrink to help keep it from slipping. Sent from my iPhone using Tapatalk

There’s no spec, the flow rate depends on throttle / speed as to how hard the Venturi pulls. Through that small line, maybe 1-2 gallons a minute so 60-120 gph when moving along. Sent from my iPhone using Tapatalk

I have a new set of CarterB sponsons I don’t need. Message me if you’re interested. Sent from my iPhone using Tapatalk

Don’t seal it with anything. It’s not like the ride plate bolting on makes a seal anyway. If the bolt is still in the hole it’s sealed the same as all the others. Sent from my iPhone using Tapatalk

If the bolt is broken off in the insert it should still be sealed. Rn skis only have 4 bolts anyway, should be fine to run as is. If you have a welder or a buddy with one, you can weld a nut on the bolt and back it out. Drill it or weld it, either way the ski really needs to be flipped over to...

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The edge of the masking tape is where it ends on my rn. Mine is 7/8” longer than stock because I replaced my tube with a 36” tube that I didn’t cut shorter and welded it on the flange. So 5 3/4 - 7/8 = 4 7/8. Sent from my iPhone using Tapatalk

I ordered both pistons from different places and they both came with the same rings. I figured if they were in fact 81mm rings the gap should be more off than that. The box says 1.00 so I guess that must be for 1mm over stock. I'll just have to check the compression after break in and see where...

Got some more done, dumb things keep getting in the way, like the water heater rusting through yesterday. Anyway, the motor is together, 82mm ProX pistons, SBT crank, CarbonTech reeds. For some reason the pistons came with rings labeled as 81mm. Checked the ring gap and got .018" on 3 and .024'...

Pull the siphon hose off on the pump reduction nozzle, blow compressed air through the line and make sure it comes out in the engine bay. Sent from my iPhone using Tapatalk

@yamanube What, I haven’t heard that before. I just powder coated my bed plates as well. My ski has had a b pipe for at least 10 years and there aren’t any signs of rubbing there. But I’ll definitely check clearance on it once the exhaust goes in. Powder looks nice. I feel you on the aircraft...