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  1. MTRHEAD

    "NEW" Kawi SX-X 160

    Cheap perfume on an ugly ski. Why not invest in a better looking upper deck on current 1500. This will sell about as good as the Doo 3d.
  2. MTRHEAD

    B1 Riva Rear Exhaust?

    that an awesome list. Just glad it didn‘t say “go faster”
  3. MTRHEAD

    B1 Riva Rear Exhaust?

    and why do that? other than preventing a murky looking pump.
  4. MTRHEAD

    B1 Riva Rear Exhaust?

    I was wondering why your doing it?
  5. MTRHEAD

    Want to Buy Riva Red Pipe for Waveblaster

    Wanted to buy Riva red pipe for waveblaster. complete or just chamber please pm. thanks
  6. MTRHEAD

    Want to Buy Lamey, Racers edge, Dasa, RD, Riva 7 port sleeves

    Looking for Lamey (R&D Riva) cylinder sleeves 2 for 8mm stroke 81mm bore (small dia sleeve) 2 for Stock stroke 85mm bore (mid diameter sleeve think) Please message if you have any
  7. MTRHEAD

    Carb Theory & Practice

    Yes. When I was racing sxr800’s in superstock (04) I did a set of sxr cases to fit those reeds. I have pictures I will have to dig up.
  8. MTRHEAD

    Carb Theory & Practice

    Common racer mod at the highest levels in early 90’s. 3-4 shops offered it. However the IJSBA banned them in about 93/94 because the welds broke in some cases and caused safety issues. By 94’ they were gone and 62t was out. That’s what I remember. The other mod with ported 62t cases was to...
  9. MTRHEAD

    Big bore flat top pistons

    Call DASAracing.com They sell them 86 and 86.5
  10. MTRHEAD

    38mm SBN questions (NOT OEM's)

    Yes an upgrade IMO. I will be selling mine with a ported epoxy filled manifold and with custom turned airhorns and filters. I will post here in a few days with pictures...
  11. MTRHEAD

    Knee Replacement

    A guy in our region races with 1 replaced knee and just went under the knife for second. He still rides great! Oh he’s well into his 60’s Now. What about replacement ankle? That’s newer but curios….
  12. MTRHEAD

    Vomiting Carbs

    I would go lean until it can’t accelerate from zero or 1/8 idle. Read that link or the Mikuni manual. I still think you’re pig rich. Swap it around 115 L and 135 H (if you have the jets). Then try running from there
  13. MTRHEAD

    Vomiting Carbs

    You’re getting closer. Keep going leaner. Also on pipe. Kawasaki 650 parts. The black rubber bushing and metal inserts are 650 exhaust parts.
  14. MTRHEAD

    Vomiting Carbs

    Equal parts the mach 2 will beat any B pipe all day long. Mach 2 only. It was a superstock race pipe.
  15. MTRHEAD

    Vomiting Carbs

    I run a single restrictor jet (carbs drilled) so I try to get them (pop off) real close to each other. Also - I'm going to guess the OP is rich by 15+ total points give or take. 115 (gold or bright zinc/chrome look) , 80 (black/dark) , 65 (shortest & silver) are springs that are wound with...
  16. MTRHEAD

    Vomiting Carbs

    I would keep your 2.3's, make sure they are not shot and maybe even 2.0's if your into tuning. (that's me) I own multiple 60+ MPH standups and none of them require 2.5's even with 46 Mik's or Novi 50mm Carbs. Only time I ever "needed" 2.5 was racing with MS109 fuel or in my race only...
  17. MTRHEAD

    Vomiting Carbs

    Doubt it. You have described other fundamental issues. Did you check those orings around seats? I had some fail this year that caused fueling issues. They dry out and let fuel by. What needle/seat size are you using? If it’s small and you’re using the real small spring to get the pop off...
  18. MTRHEAD

    Vomiting Carbs

    21 psi is a what most would consider a “low” pop-off with oem 46’s. Based on the very little info posted I sure wouldn’t go lower Also airfilter styles have an affect on the pop-off circuit As other have said over propping can get you in a place you can never get it correct. 10/16 hookers...
  19. MTRHEAD

    Rocky Mountain Fantasy SX

    I stopped playing a couple weeks ago. i haven’t logged on since southwick. lol
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