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  1. MTRHEAD

    4 Stroke Superjet - Reviews?

    I own all the model superjets. Thank goodness I didn’t sell my two-strokes! Nor did I sell my 22’. I did all the normal mods (tune, plate,grate, prop, mats, misc) including RRP pole and OVP. It’s got its place and it works well. I fixed the creak by siliconing the inner to outer hood...
  2. MTRHEAD

    SOLD Kawasaki 750/800 Reed Spacers

    Kawasaki Reed spacers. 2 sets. One custom thin and tipped (angled up) and other wider. Wide ones can also be used for Rinaldi reeds. $40 shipped for all 4 in USA
  3. MTRHEAD

    New Stainless Stud girdle kit Yamaha stroker

    Brand new +10mm longer stainless stud kit for Yamaha cylinder. Works for stroker cylinders $40 shipped in. USA
  4. MTRHEAD

    SOLD 21-24 Blowsion billet SJ grate

    For sale mint condition Blowsion 5 wing billet grate. Mint condition Save over 50% off retails. (Msrp 369) $175 shipped in USA
  5. MTRHEAD

    SOLD R&D Blaster/SJ scoop grate

    Sold
  6. MTRHEAD

    SOLD R&D Blaster/SJ scoop grate

    Works fine. Fits WB and SJ’s. $70 shipped in USA.
  7. MTRHEAD

    JetDynamics #10 grate. Sx/sxi or SJ

    Used Jetdynamics #10 for Kawasaki Sx/Sxi but took it off a SJ. Someone drilled extra holes. Anyways works as intended. $70 and I will ship in USA.
  8. MTRHEAD

    Rocky Mountain Fantasy SX

    That’s awesome
  9. MTRHEAD

    Rocky Mountain Fantasy SX

    Ouch last night!
  10. MTRHEAD

    Rocky Mountain Fantasy SX

    Going to be a great one this weekend!
  11. MTRHEAD

    Surface rust on bearing cage

    Yes Absorbs
  12. MTRHEAD

    Surface rust on bearing cage

    Ok. That oil (Ski Craft) contains rust inhibitors. I’ve ran 927 and Benol and had rust later because the esters in those oils are hydroscopic.
  13. MTRHEAD

    Surface rust on bearing cage

    What oil did you burn with that crank?
  14. MTRHEAD

    Rocky Mountain Fantasy SX

    Man what a last couple laps for both classes. Never change your original pick (second guess). I had coop and et then Mcelrath 12th. Dang it!
  15. MTRHEAD

    2003 vs 2004+ SXR 800 Electronics

    Stick with what you have. That’s what most if not all of us raced with before aftermarket cdi’s were legal. Never heard of an 03’ stator failure either
  16. MTRHEAD

    Rocky Mountain Fantasy SX

    Great times and what a crowd!
  17. MTRHEAD

    Riva red pipe questions

    I saw some SJ’s ones on FB recently in the $400 range. Might be easier to sell and buy then cut, clean, and weld. I’ve done it and that takes a capable machine (amps) to weld.
  18. MTRHEAD

    Rocky Mountain Fantasy SX

    Man it was a tough one.
  19. MTRHEAD

    Crankshaft

    Great point! Especially back then with Dry pipes, 48’s, msd total loss, 58mm exhaust ports ,and 195-205 psi. It was a handleful
  20. MTRHEAD

    Crankshaft

    Back in the superjet (97-02) hey day guys would get DQ’d for these cranks. The ruling was the 650 is a different model ski thus not allowed. Back dating was only allowed within same model Also the trick was Suzuki or Honda hollow pins and Suzuki sled bearings. (Arctic Cat) note today you...
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