I will add my cold weather start up conditions. My sled has just over 1000 miles and the stock flash for a 17 ltx dx. I run 87 octane fuel and sled is completely stock. My coolant temp registered -14f buds ski doo registered -17f and truck registered -16f. First start attempt after letting the fuel pump cycle once was a no go, it didn't fire at all. The second attempt after letting the fuel pump cycle it did start on two cylinders only for about 5 seconds than stalled. The third attempt after letting the fuel pump cycle it started on 2 cylinders than after 10 seconds or so it hit on all three. I will add this observation for warm starts the rest of the day. If I let the fuel pump cycle sometimes it would start first time, always on the second attempt. If I just hopped on the sled and turned the key with no fuel pump cycle it would start first time every time. That includes stops of up to an hour for lunch. I am not real sure why not letting the fuel pump cycle on warm starts made for consistent 1st starts but it was very noticeable. If the sled cold starts like this say down to -30f it would be ok, not happy about it but could put up with it. Not bashing but all 3 ski doos 16 600 etec, 17 600 etec, and a 16 900 ace all started easily first attempt with no stalls. All 4 were started at the same time with the temps listed above. On a positive note I was a very warm camper at trail speeds behind my 4x8 sheet of plastic!! ;0)