Problems with mcx nytro 270!!!

[turbojunky]

Hey everyone I'm new to this Yamaha 4 stroke stuff but i just bought a 2008 nytro with mcx 270 turbo kit with a 162 well anyways I took it out to the lake and was racing around mad overheat light came on the snow conditions weren't the best like 3in of hard stuff so I took it home looked it over and saw that some coolent came out the overflow hose just figured it was just from overheating because of snow conditions then I also found a little leak by a hose clamp so i fixed that then added some coolent because I lost some not a lot then took it for a ride which was like 4 miles down a plowed road each way and no overheating came back and checked overfill house and some came out but no heat light. Just wondering what it could be I read on here that some ppl keep the overfill bottle pretty empty or could it be my cap not holding pressure and sending it to the overfill tank or could it be the damn headgaskt???? Please help!!
Note I haven't drove it since the last time I saw coolent like i said it didn't overheat just spit some coolent out and i had to take the road to get to the trail to clear that up

 

[yamiman]

Perform a leak down test and also see if it's pressurizing your cooling system, if it is your head gasket is toast