2006-2009 Suzuki LT-Z50 QuadSport ATV Factory Service Manual, Page 24Get this manual
PERIODIC MAINTENANCE
Loosen the lock-nut of the throttle cable Turn the adjuster in or out to obtain the correct play After adjusting the throttle cable play, tighten the locknut 1Throttle cable play: mm (0.12 0.20 in)
After the adjustment is completed, check that handlebar movement does not raise the engine idle speed and that the throttle lever returns smoothly and automatically
ENGINE IDLE SPEED