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  1. Vintage Ski Doo's
    I am trying to swap to cdi on my blizzard with a 503 I have a complete cdi system from a 436cc rotax. Sator and flywheel everything went right on to the 503 and if I turn the motor over I have spark. Haven't tried running it, as my concern is about the timing. I'm unsure if it is going to be...
  2. Vintage Ski Doo's
    I have a 1988 SkiDoo Tundra and I'm trying to understand exactly how the CDI ignition works. Its the type 253 single cyl engine. I understand that the generator coil (attached to stator plate) generates electricity that continuously charges the CDI (capacitor) until the capacitor is triggered...
  3. Mach Z / Mach 1 / Formula III Triples Classifieds
    Looking for a CDI and paired DESS, Located in NB, Canada. Thanks!
  4. Vintage Ski Doo's
    Can anyone here help my diagnose a faulty stator? Mine seems to check out fine when tested with an OHM meter on the generator side but wont produce any light thru the lighting coil. Does the lighting coil have anything to do with igniting the generator? I had the sled running several times...
  5. MXZ / Legend / Summit / Grand Touring / Formula
    Hi everyone... I read all the posts on this topic, I just hope I am missing something. . I bought this sled not working, and now I understand why the guy before me didnt want it... No spark. Here is what I have tested. Tested Tether, key and kill switch, all are working correctly. Coils -...
  6. MXZ / Legend / Summit / Grand Touring / Formula
    Hello all, I've fixed many of my issues by searching the through the wealth of information in your posts. Thank you. This issue is weird and has left me stranded in the cold. So It's happened twice. Running it for days out camping, then another chilly morning I prime like normal, and get a...
  7. MXZ / Legend / Summit / Grand Touring / Formula
    1999 Formula Z 670 I suspect my stator may be faulty, any suggestions on how to test it in engine but out of the sled. Also any suggestions on how to test the cdi box, ignition module, and coil, as I cannot find anything helpful on the internet, dealer isn't much help either. Any help would be...
  8. Mach Z / Mach 1 / Formula III Triples
    Hello! Im new to this forum and thought id get the most help here if anywhere. so i have a 98 formula 3 700R and i cannot get this thing to run right. I can start it up and it will idle fine as far as i can tell. But as soon as I give any sorta throttle to it, it bogs right down. it wont die it...
  9. Vintage Ski Doo's
    looking at doing a cdi conversion on my 503 rotax. it is from a 1980 ski doo everest 500. i have the ignitions setup from a 377 from a 1990 safari L. what is involved in doing the conversion? i have access to a full machine shop, so I doesnt matter if i need to modify stuff. i also have the...
  10. Vintage Ski Doo's
    my son just got a 1989 mach 1 the tags said 01 on it they had done a hi performance kit on the clutch,air box exhaust ,shaved head.he stored it well with oil in it good antifreze turned it over regularly ben sitting 13 years great compression i checked. he said no spark and a guy told him...
  11. Vintage Classifieds
    Got a 1979 ski doo blizzard 7500 plus. The 340 had a blown crankshaft so i swapped in a 454, custom wiring harness, motor had a full rebuilt 600 miles before i got it, and i blew a brass rotary valve gear so i put in a new disc and gear and all new gaskets and seals all around and i put a new rv...
  12. MXZ / Legend / Summit / Grand Touring / Formula
    I am asking everyone on behalf of my cousin, he has a 1999 mxz 670 ho and it is not running properly. he can start it fine and it will run for seconds.... Sometime 4 sometime7 but no more than15. They changed out the stator, coils plugs wires and boots, and by passed the ignition, to try to...
  13. MXZ / Legend / Summit / Grand Touring / Formula
    I am asking everyone on behalf of my cousin, he has a 1999 mxz 670 ho and it is not running properly. he can start it fine and it will run for seconds.... Sometime 4 sometime7 but no more than15. They changed out the stator, coils plugs wires and boots, and by passed the ignition, to try to...
  14. MXZ / Legend / Summit / Grand Touring / Formula
    so, 97 summit 500. raveless. I believe I am getting erratic spark after a bit of a run at a high power and deep snow sort of load. only in loose snow though, rips on the lake trail at wide open for miles. goes like stink too can tell you the fuel system checks ive done, but its extensive. and...
  15. Vintage Ski Doo's
    #1 Does anyone have a list of all of the Skidoo Single Engines, with Bore & Stroke & Year made, or know a web site with the info? #2 Does any one have the Part Numbers for the 1983+ Skidoo 277 Nippon CDI Setup? Flywheel Stator Plate Coil etc. #3 Does anyone have a 277 Nippon CDI Flywheel, for...
  16. Vintage Ski Doo's
    I have a 277(72mm x 66mm) Single that had a Bosch Points Ignition. I want CDI, so what is my Options? My 277 Crank Mag End Taper is 23.65mm (0.931") on the Big End, 20.96mm (0.825") on the Small End, 23.59mm (0.928") Long. The Bigger Mag End Taper on say a 377 - 617 is: 27.8mm (1.101") on the...
  17. Vintage Ski Doo's
    Recently got a sled for the gf from old friend. has sat for 1-2 years. ran when last used. would not start with a little mix down the carb. so i checked spark-nothing both plugs. changed ends, nothing. removed coil, cleaned grounds and tested continuity between plug ends and power in-good...
  18. Freestyle / Legend / Tundra / Expedition Sport
    I have a 1994 tundra lt looking for a cdi box. I have searched high and low with no luck finding another one. Looking for any suggestions for a cdi box or maybe a engine swap that is doable. Thank you Sal
    cdi
  19. Mach Z / Mach 1 / Formula III Triples
    need a trip skidoo CDI box must be a 99 or newer having it remaped for race! text 313 308 5758
    cdi
  20. MXZX Race Sleds
    I have an 03 mxzx 440. It starts right up and idles fine. for first ten minutes or so it rips then it fall flat on its face dropping down to one cylinder. The mag side is the side that drops. you let off throttle and it picks right back up and idles great on both cylinders then once you get on...
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