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  1. 600 ACE 4-Stroke Models
    I have a 2012 600 ACE where the right (new) spark plug looks like this after running for a short time. It starts fine cold, then dies after running a short distance, then won't start again until leaving it for hours. The plugs were marked and put in with the gap facing the injectors. After the...
  2. MXZ / Legend / Summit / Grand Touring / Formula
    1999 Ski Doo MXZ 600 roughly 3,500 miles (I have another matching sled to this one so I can swap parts) I need help friends! I've tried about everything I can think of and I'm going crazy. I'm fairly mechanically inclined but I'm really new to snowmobiles. Please help. SOS 12-31-2019 First...
  3. REV-XP / XM Chassis - Mountain Sleds
    Hi, So ordered new plugs for my 2015 Summmit 800 etec from the ski doo website they sent me NGK R PFR7AB plugs when I pulled my plug (first time pulling) they are NGK IR IFR8AG whats the difference is one set better than the other?
  4. Sledding - General Discussion
    Any thoughts, knowledge about the difference between BR9ES and BR9ECS, I run an 06' GSX 500ss. Also when I purchase the ECS at Napa they are gapped around 0.030. I've read they should be 0.031 and 0.018???
  5. Sledding - General Discussion
    i baught a new sled today and the spark plugs that were already in the sled were br9ecs and the left cylinder was getting fouled so we put the back ups back in and they were br9es and again the left cylinder spark plug got fouled so then we put a nother new one in the left side and now its...
  6. REV-XP / XM Chassis - Mountain Sleds
    One spark plug got loose on its own , oil spilled from the hole and burned on the motor... Luckaly no damage but its the first time it happened to me... Anyone add that kind of problem? Think a should change the plug?
  7. Sledding - General Discussion
    I am a newbie here and would like opinions on the spark plug color out of my mach z 800 triple. Not sure if I need to re-jet or adjust oil pump mechanism. Or new piston rings. Thanks for your feedback.
  8. Sledding - General Discussion
    I am a newbie here and would like opinions on the spark plug color out of my mach z 800 triple. Not sure if I need to re-jet or adjust oil pump mechanism. Or new piston rings. Thanks for your feedback.
  9. 900 ACE 4-Stroke Models
    I have new NGK plugs that came with a maintenance kit, the 2014 sled has 900 miles on it, its all apart now for a few changes, should I do the spark plugs now? I have heard (somewhere on DooTalk) they should be indexed to face the injectors -- is that right? Exactly how is that done? which...
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