anything to look out for
is it reliable
anyone have any good reference sites

those 5500 blizzards are almost indestructible, ive owned and ridden a bunch and they are a blast

My brother used to ride an '81. Heavy, but flat, fast and reliable.

Fast? I'm not sure about that one. I guess it isn't bad for a sled with around 50 HP. They were for the most part indestructable, but the ride is horrible.

ya i had one, 503 fan cooled, great motor light machine compared to something in the mid to late eighties a little twichy at high speeds with a light rider but other than that make sure everything is working and not seized (suspension etc.) she should be a good machine :p