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  1. How To's
    I have a 2000 mxz 500, was wondering about rpm’s, it engages around 4500 rpm which seems normal, but top end i can’t seem to get more then 6200-6400 rpm at 60 mph. Does anyone have any input?
  2. MXZ / Legend / Summit / Grand Touring / Formula
    Hey guys, Hoping I can get a little help on a project sled I purchased. It is a 1997 summit 500. The hac is deleted, the carbs are jetted at 320/300 50 pilot. I have fuel, spark, 130psi compression, and air. It will not start. I disassembled the carbs, checked spark over and over again. Seem...
  3. MXZ / Legend / Summit / Grand Touring / Formula
    Hello, first time sled owner here and I'm trying to learn as I go, but some things are escaping me. I picked up a 96 Formula SLS 500 based off what I had read on these forums, it is a pretty great little sled with a strong motor. It had apparently sat for 3-4 years with minimal use. Previous...
  4. MXZ / Legend / Summit / Grand Touring / Formula
    Hi Folks, I have a 2002 Legend 500 fan that loses power after riding longer distances (meaning not around the yard or on slower trails) where throttled up for longer periods of time OR when going across lakes. Runs fine cold and short distances where its not pushed as hard. Cleaned the carbs...
  5. MXZ / Legend / Summit / Grand Touring / Formula
    I have a 2002 mxz and when I switch to my high beam they are really dim. When I am cruising they work fine. The low beams work fine on their own but sometimes will just completely shut off. I want to know if anybody else has had this problem and would know how to fix it.
  6. MXZ / Legend / Summit / Grand Touring / Formula
    Hey I have a 583 summit that I want to adjust the clutch so it engages softer and at a lower rpm for better trail riding. Has anyone done this or know a way to do it
  7. MXZ / Legend / Summit / Grand Touring / Formula
    Gentleman, I've finished cleaning and setting up my carbs to factory settings, replaced all fuel lines and tank filters. Cleaned and inspected fuel pump - seems to be okay. Sled starts cold (full choke) two pulls every time and will sit and idle for hours if I leave it. The minute I try to...
  8. MXZ / Legend / Summit / Grand Touring / Formula
    I have a 1997 Formula 500 and I would like to have a taller stance on it as most older sleds are really low to the ground. I did some research and found some stuff on getting shorter radius rods, but I don't fully understand and I am looking for some help.
  9. MXZ / Legend / Summit / Grand Touring / Formula
    Hey Guys, I've been having issues with my electrical system. Works fine for while then everything just shuts down. All electrical; lights, dash, tach, heaters. Then comes back on and shuts down intermittently. I start the sled and things are fine, rode for an hour and it shuts off, Of course on...
  10. MXZ / Legend / Summit / Grand Touring / Formula
    Hey guys, New to forum, but not snowmobiling or working on them. Bought a low mileage 2000 Formula Z 600 with a burnt out piston. Come to find out the right side cylinder head is scored pretty nicely. Looking to find one in the used realm, but need to know what years and models they used the...
  11. MXZ / Legend / Summit / Grand Touring / Formula
    Is anyone a mikuni expert? I need to source a carb (body at least), I have one that the float arm tower physically is busted on...(wish I knew how that happened!) didn't see any on ebay and a quick google search left me in the dark. (not sure if it's mag or PTO side yet, need to get it back...
  12. REV-XP/XS Chassis: Perf. Trail 120-129 Inch Models
    So I have in the garage now a 2010 500ss, it has relatively low miles but so the story from the beginning was bought blown up 4 years ago and was rebuilt, ran good for 1 season and toasted the PTO side, so 3 years ago top end was rebuilt and ran good for a season did the same thing but the MAG...
  13. Vintage Ski Doo's
    hello, i am new on dootalk, and i have a 503 Rotax, which i am planning on building a tuned pipe for. i have the software to build it, except i don't have the port timing measurements, and i have the engine in pieces so i cant measure it myself. i was wondering if anyone could help with that? it...
  14. MXZ / Legend / Summit / Grand Touring / Formula
    The ski doo runs great but the lights and gauges do not come on, I can jump out the relay ( both test out fine ) to get them to work off the battery. I have 3.5 volts on the stator between all 3 wires and installed a new voltage regulator. Is there something else in line with this that i'm...
  15. MXZ / Legend / Summit / Grand Touring / Formula
    Hello I just picked up a 1995 formula sl 500 fan cooled. I tried to research the best I could but could not find any reliability info on these sleds. I bought it mainly cuz it was a good deal and it started first pull, cold, after sitting the summer (not sure how that was possible but it...
  16. MXZ / Legend / Summit / Grand Touring / Formula
    97 summit 500. raveless. when i am breaking trail in something deep, or is i get into bad slush, after 10 seconds or so it will start to miss and very quickly it loses some rpm and drops out of the power band and i get boned. buuuuut, if you make it to something solid and keep on the power, it...
  17. MXZ / Legend / Summit / Grand Touring / Formula
    I recently purchased a 97 touring sle with the 500 fan cooled 503 rotax engine. The sled runs strong, however, I noticed some oil staining where the top end of the engine bolts to the bottom end. I torqued the head bolts to the proper specification and I am monitoring. Is there anything I...
  18. MXZ / Legend / Summit / Grand Touring / Formula
    Having problems with my 01 mxz 500 ran good for 200 mi this season then started bogging out one day after riding for a half hour it would go in and out work fine for a bit then bog out again seemed like it was only running on one cylinder. Carb boots were both cracked so i changed those out and...
  19. Vintage Ski Doo's
    I keep on fouling a plug on my clutch side cylinder. I can change the plug, and it runs fine till I stop riding and leave it for a day, then it fouls within 20 mins of riding the next time I go out. My fuel mixture is fine, its only one cylinder and not the other and not both. its a single carb...
  20. Vintage Ski Doo's
    Hey there doo'ers. My area is finally supposed to get some snow tomorrow, a predicted 20 cm. My sled is ready to go, except for the 34 year old chaincase oil that's in it right now. It's a 1980 ski doo everest 500, not the Everest l/c electro, just the good ole rotax 503 with a single carb, no...
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