if there are persistent problems its usually due to the install. A kit is only as good as the person or dealership that installed it. I see you are in Montana. And I'd imagine you are dealing with Mark Leiphemer. One of the best. No issues as he has likely installed over 100 kits without issues and is well versed in the product. Good choice. Call if any issues.
Cheers
RS
I wasn't going to get into this at all... but here we go.
Maybe Mark is great if you bring the sled to him, over the phone not so much. He did try though at least.. unlike the rest of the MCX team..
The install of these kits is very very straightforward. Good instructions as well. You would have to be picking up a wrench for the first time in your life to mess it up. There will be no issue here for about 99% of the people installing it. Unless you get into the 270 kit and are unsure about the headshim.. that's a totally different ball game from my 190 kit.
My issue was a faulty TCV valve. It over boosted my sled. Since I fixed my problem I have found many others with the same issue. One Yamaha dealer actually ordered in a few of the MCX kits and installed on new sleds only to have them over boost and cause engine failures. I'm sure if I continued to ride my sled the way it was I would have been in the same situation. Erik didn't seem to care.. Its like he didn't believe that his product could be faulty. He even wanted me to buy parts from him to fix it. The incorrect parts too I might add..
So anyways, long story short I'm done buying MCX products and I have been persuading others to stay clear as well.. Its the least I could do for the full year of heartache I experienced with it.