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  1. MTRHEAD

    Where's the best place to buy or have a crank rebuilt?

    Race teams go to Crankworks
  2. MTRHEAD

    SN to RN pole conversion bracket with pole lock

    If you have an old hazard or watcon you can drill a hole (some it’s already there) on the side and run a bolt/nut with a spring and push it sideways when pole is up. Other ideas have been presented on PWC today. look in individual builds and all the squares
  3. MTRHEAD

    62t,701 760 cases

    Check FB groups/marketplace: all the time $100-$200 complete and perfect. Got a set last week complete $135 shipped.
  4. MTRHEAD

    cheapest tubbies/sponsons

    Here’s a set
  5. MTRHEAD

    cheapest tubbies/sponsons

    My first set, late summer of 2001, was slabs of mahogany wood that was in the old boat woodshop. Shaped them then pulled them off and used west systems epoxy on them. I recall they were about 1/2-5/8” thick. Very similar to what R&D, 3dr made public at end of 21. Long before the shapes...
  6. MTRHEAD

    Fluid dynamics r&d trim nozzle

    Very cool. R&D marketed an adjustable nozzle in early mid 90’s. I only saw one ever. My hunch is it didn’t survive durability
  7. MTRHEAD

    9 port 81mm cylinder

    PJS Kawasaki supercylinders (last version) had casting for small aux ports as well and the WPP cylinder.
  8. MTRHEAD

    9 port 81mm cylinder

    There was a few of these casting with aux ports forsale on here about 10 years. No sleeves though
  9. MTRHEAD

    38mm Mikuni’s w/adapters

    Sold
  10. MTRHEAD

    38mm Mikuni’s w/adapters

    For sale: 38mm mikunis Came off a superjet with B-pipe limited 70/135 1.5 65 gram. Around 30-32 popoff Chokes removed Crossbar adjustment needles Clean set $150 shipped in USA. No special PayPal fees or other demands. Just USA shipping
  11. MTRHEAD

    Surfriding CDI Question

    Awesome. I had one of the first 62t Advents from Bob in late 01’ Never had an issue. Sold it when I ran to the SXR’s in 04’. Never should have! Last I heard it was still goin. I’ve heard mixed on newer MSD’s and even 62t zeel I run OEM in my Lites and My Spec Blaster (rev limit mod)
  12. MTRHEAD

    760 compression

    Loaded question Hull, Timing, pipe, bore, prop, weight, dome profile.
  13. MTRHEAD

    21 Superjet pole on 09 Round Nose Superjet

    Somewhere during that installation!
  14. MTRHEAD

    21 Superjet pole on 09 Round Nose Superjet

    Posted this on a reply in another thread but thought it should have its own thread Donor ski: my 22’ take off pole - never used Recipient ski: kids 09 Round Nose Superjet Custom parts: OEM Kawasaki sx/sxi/sxr pole spring Pole bolts right on. Use the spring from the Kawasaki. Bend the...
  15. MTRHEAD

    Why a Heavy Flywheel Yields More Top Speed

    Back in late 90’s early 2000’s a company called Fluidamper, still one of the biggest in automotive aftermarket, made dampers (their technology in our coupler design) out of stainless. They were used a lot of race Kaw triples and some on Yamaha’s. I had a few. Hard to find.
  16. MTRHEAD

    ISO: 760 stator GOt ONE

    Adding - I recently had an oem 760 stator stop working (charging battery). Yes oem flywheel with no mods. Ski still runs just doesn’t charge. I have had peculiar run of bad luck with 760 stuff (lightened wheels I bought) and now an actual oem freshwater stator failed
  17. MTRHEAD

    Round Nose Poles

    Great news! We put my new unused 22’ pole on an 09’ Round Nose Here is the trick: Kawasaki 750/800 spring and bend the long side straight and keep the rubber roller on it. Leave the short side rubber on. Insert long end into left tube. When you get it bolted together make sure you run a...
  18. MTRHEAD

    Round Nose Poles

    What spring was used? Assuming using standard pole mount base.
  19. MTRHEAD

    Crankshaft stroker +6

    Your transfer timing will be so high with a 61x 62t cylinder and that crank as described. Plan on sticking the piston out of the hole some to gain some back. There was a reason the industry walked away from 5mm/125 rod cranks in about 94/95. They were the limit on rod ratio and 6m6 650...
  20. MTRHEAD

    Crankshaft stroker +6

    What rod? doubt it’s got a 125mm stock length SJ rod. Maybe a 133 stock kaw length rod? Old school was 133 Suzuki or Kawasaki rods
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