I'm totally new to this sport and just bought a 2002 zr 600 efi and a 2002 zl 600 efi esr. Went up to Parry Sound on Fri nite and ran fine on main trail doing approx 50mph for 1/2 hr. When i got on a side trail and had to stay between 10 and 30mph my temp lite on the zr came on every 5 minutes or so after stopping and letting it cool down. My son was on the zl and after stopping with me and restarting his temp lite came on everytime until he rode about 200 feet. My dealer checked them over and said that this is normal due to hi temperature outside (32 f) and said that if the trails were hardpacked I needed to get into some loose snow to cool it down. Is anyone else having this problem and is this normal? Any comments would be appreciated.