degrees

Can some one help me here put a new battery in started it up to heat up and the cooling fan came on at 75 anybody know why:confused

The bike is so coming out tonight. The roads have dryed up :devious:devious:inlove:inlove

Who's ridden both an could put into words the difference in feel (if any)? I've done a lot of miles on a 90 degree twin, my old TLS, and I've done a lot of miles on inline 4's too, so I know the difference in feel between those engines but was curious as to how a 60 felt compared to a 90...