I own a 2003 Polaris trailblazer 250, I am simply looking for some engine specs if anyone can help or direct me to the right place. I need to know the engine’s idle rpm AND the high end (full throttle) rpm specs for my machine so that I can properly adjust my idle and air with my rpm reader (just installed new piston and rings). The stamp on the engine reads as such.

EC250PFE152 244CC
MOTOR NO 03-61822
BY ROBIN MFG. USA

For the life of me I have not been able to find the specs I am needing. Someone please help!!!