Hello all, new to the site and cross over/mt sleds. To make a long story short, I purchased a 2010 Assault RMK last year. I had two quick meltdowns so I had the motor completely rebuilt top and bottom and had one day of easy riding on it last spring. I noticed on first start up this year that the coolant bottle seems to be heavily bubbling/flushing. Any ideas. Also does anyone have suggestions on shock rebuild guys around northern Michigan. Thanks in advance and looking forward to a snow filled season.