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  1. S

    Nytro 153 Skid in RX1

    Yes it is possible. I moved the front mounting hole foward 2 ". I have already replaced stock rear brackets with homemade alum. Measure from front hole back 32" and drill hole for rear mount.Top of upper rear idler wheel was flush with bottom of running board. ;)!
  2. S

    151 to 159

    Installed the 159 x 16 wide today. Moved the nytro 153 skid back to the original front 151 susp hole, rolled offset axle back, but I am a bit concerned of how much track with no rail is between driver and rail tip. I run 2 anti stab wheels on rail tips. Read some bad posts re stabbing tracks. I...
  3. S

    Air Fuel Sensor and Race Fuel??

    I have the same problem with O2 sensor, using Bosch 17014. $92 @ Bumper to Bumper. Hooped in 30 miles. Would it last longer if I only used for tuning then cut power to it or would I have to remove it & store out of exhaust ?
  4. S

    151 to 159

    Maybe change of plans, found a 159 x 16 x 2.3 2.52 pitch ported track from 07 summit X, will it be hard to fit to 04 Rx tunnel ?
  5. S

    151 to 159

    I have a line on a 159 x 15 x 2 " camoplast to replace stock 151 on my s/c RX MTN. Will I notice an improvement or am I wasting time and money. Have a nytro susp with offset axel rolled forward to accept the stock 151. will roll axle back and move susp back 1.5 " if needed.
  6. S

    Where to run exhaust on SC

    I have glasspack under tunnel exhaust. Cheap Walker 2"inlet 2"outlet, bought at auto parts store for $25. Got rid of 28lbs of junk from rear. Room for molded skidoo gas can & straps. Gas can fit nice under boss seat made for yamaha muffler. Not much louder than stock. ;)!
  7. S

    pulley #'s equal boost #'s

    Where are you measuring boost, before or after carbs ?
  8. S

    MPI Supercharger Question?

    Have had s/c oil go down to add mark on dipstick and stay there. Read some post back a ways about proper level some of the first kits running at the add mark level. Try the pill bottle trick on vent line to catch any oil blowing out. ;)!
  9. S

    RX1 rear suspension swap.

    I installed a 153" 07 nytro susp in my 151" 04 mtn rx1. front hole moved forward to next rivet, approx 1 ", made new rear brackets out of alum and drilled new holes, not sure where they compare to original holes but I could measure center to center where they are now. ;)! I also run an offset...
  10. S

    Whats the trick to get vortec to dump boost?

    I've got my vortech on the charge pipe and a hks on side of intercooler, tried to set up the hks to adjust to limit boost to 5 or 7 lbs but cycled so badly was like riding a bucking bronc. same as you wanted to be safe for lower octane. I had trouble earlier this year with setting up the...
  11. S

    Supercharger air filter

    I've got the filter outside the hood works well except under these conditions,thought about using heater duct hose and moving filter behind windshield. Talked with a front mount turbo apex guy @ Allan Creek on friday last wknd ,his filter was the screen type never had any problem snow fell right...
  12. S

    Turbo or Supercharger for trail riding?

    2274miles on sled, s/c installed @ 400. Riding in Valemount last weekend low fuel lite on at 58 miles, worked sled hard in meadows, cutblocks and highmarking. 04 mtn did not come with rear exchanger, no heat issues unless slow riding on hardpack trails,( following the wife) :tg: icescratchers...
  13. S

    Supercharger air filter

    Want to change my supercharger unifilter to one of the turbo screens and cover it with my prefilter, had lots of snow & ice buildup last weekend in Valemount, it's mounted through the hood and we were in two to three ft of powder. Anyone with info where to find a screen in Alberta ??? 3" id x...
  14. S

    Turbo or Supercharger for trail riding?

    As far as I know yes. Installed myself back in 06, growing pains like clutching, bypass valves but all sorted out now, lots to research on this site. If you have any questions I or someone else will try to help you. :rocks:
  15. S

    Turbo or Supercharger for trail riding?

    My S/c 04 Rx1 mtn is awsome on the trails and boondocking, running 10 lbs so race or avgas mix is a must. Instant boost for hard accelleration back out and hit throttle again and you won't stop smiling ;)! Can't comment on turbo's as I don't have any experience with them. Once you boost it's...
  16. S

    Just bought a Phazer, I have a bunch of questions.

    Classifieds have some Phazer parts. If you call a dealer with the serial # they can tell you if the updates are done, ie cold start kit, tie rod ends. My Fx on trail rides needs fan also,I think mtn and gt came with fans. ;)!
  17. S

    S/c charge tube question

    Had mine there, problem was exact oposite, had rich stumble at 0 boost from float bowl signal still seeing pressure with bypass opening when releasing throttle & was told to mount on charge tube. :o|
  18. S

    S/c charge tube question

    Pilots jets are clean, I think lean problem is from vortech letting out boost and float bowls losing pressure. 20 pilots were local Yamaha dealer, in stock
  19. S

    S/c charge tube question

    Ran the sled on the trail ride this weekend. 15-20 mph at 0 boost had to keep the choke on or backfiring steady. Afr over range on Aem.Over 0 boost sled ran great. Any ideas ??????
  20. S

    Blow-offs and bypasses

    Carbs with 125 mains.20 pilots fs @ 3turns out, needle lowest (rich.) Afr's 11 idle,17-18 @ 0 boost, 13.5 @ 2 lbs down to 10.5 @ wot 10lbs. goes very lean when backing out of throttle to vac.


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