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Up to 145 is the same size for a Kawi Skat pump. They come in 140, 142 , 144 and 145. You can bore them up to 146

You mean 84mm on the reduction nozzle? Clearance is good What cone? You can cut the impeller for setback (and/or take washer out), will help hookup Leading edges of pump vanes look damaged, need a better pic

Definitely ported. The problem is in your pump if you are describing slipping. Pull pump to check impeller condition/clearance. What cone is in and what size is the exit nozzle?

Any good discounts coming up?

Good power. Tends to crack internally near stinger

Check for internal cracking near stinger

8 x 22mm holes is equal to 1x 63mm hole, so you are short 24 x 22mm holes on hood outer and 28 x 22mm holes in the liner :p Join the holes to form slots to gain flow area more effectively in the same space. The other thing is to check clearance between inner lining and outer hood to make sure...

Any pressure on digits = a vacuum = lost hp

Corona discharge https://www.ngk-sparkplugs.jp/english/techinfo/qa/q17/index.html

You have done all the rights airbox mods(except cap can go back on), run only single screens, most people don't realize how much the stock setup holds a 760 back

84mm max, fully reliable

It used to have a 2" 90-bend on it. You have to drop e-box, holesaw through firewall, slide waterbox back and put a 90-bend on it, join the two with some silicone hose. Run lots of water into stinger to cool it off. Ski revs about 500rpm more with no loss off bottom-end power

I did tell you were going to need more pipes, those that don't listen must feel the pain, haha

Haha

Why doesn't everyone do the hood lifting test with trailer in the water? Quick way to know if your hull breathes enough.

Use a Hooker 12/17. Will have to take a pic of exhaust baffle cone, still have it in a cupboard.

Only seen them with 144. Sold my Lites WB3 to Bill Dearman in USA, he dropped in a Tim Judge 1100 and is ruling Sport class. I have another that I have dropped a STXR 1200 engine in with triple pipes.

My testing on a 1200 has found the need for 4 x 2,5" inlet pipes, but I have no breathers from the pole. If your hood is being sucked down, for your engine it is like riding at a higher altitude(reduced air density). Make sure inlets from outside into hood baffle area are big enough. Also check...

OEM on those was 144. Was running a 148 Kawi pump, now trying a 151 am pump

Testing pump Sunday, looking for less acceleration and more speed