Metalefty
New member
On my '05 450, I'm having a problem with losing most of my coolant out the overflow within the first few minutes of riding. Everything seems normal, the rads are clean,new rad cap, checked impeller and when cold I took the rad cap off and started the bike to see if there was any blow by from a bad head gasket...no coolant spitting out, now I'm stumped. When I start the bike cold, within a minute I can see the catch tank filling up and then I'll take off down the driveway and back for maybe 45 seconds and a lot coolant is running out of the overflow tube. It's as if the engine isn't being cooled at all. Any ideas are greatly appreciated, Thanks.