mcx190

I have the last month or so tried to mail ulmer racing several times to order a clutch kit for my mcx viper, but is not getting any respons, is Ulmer out of order or tust busy and filtrating mails?

Just bought this sled at the end of last year I'm very new to turbos and Yamaha sleds been riding Polaris my whole life but was sick of rebuilding motor, so just wondering why my boost gauge reads negative well the sled is in the air and I hit the throttle a couple times? Also why would it shut...

Hey new to the Yamaha seen been on Polaris my whole life but got sick of blowing up motors haha so traded my 2014 Polaris assault for a 2014 viper mtx with a mcx 190hp turbo on it, took it out for my first ride and noticed a couple things, first of all needs clutching hits the rev limiter very...