2006-2009 Suzuki LT-R450 Service Manual, Page 23Get this manual
PERIODIC MAINTENANCE
ENGINE IDLE SPEED
Inspect initially at month and every months thereafterNOTE: Make this adjustment when the engine is hot
Connect the tachometer to the high-tension cord Start the engine and set the engine idle speed between 700 and 900 rmin by turning the idle air screw CD
Engine idle speed: 1800 100 rmin