Really I have been told ride it like you stole it after arm up 10,000 mile on a 500 liberty, 7000 miles on a 400 fuji 7500 on a 500 fan fuji and 5000 on a 600 cfi just normal maintenance. Gas oil and go lots of fun. these are hard miles ditch banging in Iowa alot of on and off the throttle. As for oil. If oil pump is working don't much worry about it. Haven't blown up a sled since the 70's. ride two hours and fix for 4 hours. things are alot better now but not gauranteed to last forever. just mu opinion.
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