bought scramble 400 with ITP 589 on the back and ITP 489 on front also have KN air filter any thing I should look for this is a 1999 model new at POLARIS ANY HELP WOULD BE WELCOME

 

Ck tranny fluid for milky brown, Polaris tranny oil, make sure chain is tight. Collapse rear suspension with bike strap and ck chain in middle for 1/2" play. To adjust loosen 5/8" bolts on rear hub, and 1/2" bolts on rear disk brake. Channel locks and rag on rear hub by grease zirk, move hub to tighten chain. Look for sprocket wear. Ck axel play and ft wheel bearing play, and ck brakes, R&R if needed.
Ck rubber carb boot for cracks.(air box to carb). Ck dip stick under right side carb, this is counter balancer 30W oil. The rest is basics. Single brake lever works all three brakes, foot brake is rear only,
Good Luck!