I am a real newbie here, so please excuse my ignorance. I have a 07 phazer mountain sled. The mechanic I used told me I always need to let it warm up until the rpm's drop down to idel 1700-1900. Its typically really cold where I ride and sometimes this can close to 10 minutes. Seems like a long time to let it just sit there and warm up. Is this something I really need to do?