Ski Doo Rev XP XM XS XR Gen4 QRS Secondary Shim Kit for 600/800/850/1200.

Description

If you are blowing belts on your XP XS XM XR Gen4 (2017-218) Chassis Snowmobile, there is a good chance your clutches are not aligned, even though they will be in tolerance to BRP's measurements. Most have found by moving out the secondary 3.0mm will solve this problem. Since the QRS clutch is married to the shaft, you need to shim both the clutch side bearing and the gear side of the shaft. My kit comes with 3mm large shim for the bearing housing (clutch side), 3mm smaller shim for the gear side of shaft, all precision cut out of 304 stainless steel and tumbled to remove sharp edges, which will create a dull look to finish but the extra stem makes for a safer product to snowmobile and persons. There is also 2 smaller 1.5mm washers to shim out bearing retainer. I do not recommend going over 3.0mm due to it would be pushing the bearing out of the tower too much. If you need more than 3mm you have a more serious problem and need to look into motor mounts mods or a complete floating secondary, which is expensive. There are some kits that offer a bunch of different shimming options, but 99% of people use 3mm.
I have personally did extensive testing since 2009 with many different belts and clutch set-up. I’ve sold many kits and have had only positive feedback that this inexpensive kit save others hundreds on belts.
Installation is simple with the use of basic hand tools. After item has been purchased, I will send you an ebay message with a link to download the PDF instructions. If you cannot view the link, please use the "contact seller" option and supply an email.
NOTE: The Chinese Knock offs selling for cheaper do not have the needed chamber and are not the correct material. Buyer beware!!
Free shipping to US or Canada. Please READ shipping information, as it ships USPS Letter in US, which does NOT include a tracking number. If you would like a tracking number, please contact me to add as well as extra cost.