Yamaha YZ85(D) Owner's Manual

Also see for YZ85( P) /LC: Owner's service manual Owner's service manual Owner's service manual Owner's service manual Owner's manual

Contents

PERIODIC MAINTENANCE AND ADJUSTMENT7-14710. Install the air filter case cover in theoriginal position as shown.11. Install the seat.EAU42110Adjusting the carburetorThe carburetor is an important part ofthe engine and requires very sophisti-cated adjustment. Therefore, most car-buretor adjustments should be left to aYamaha dealer, who has the neces-sary professional knowledge and expe-rience. The adjustment described in thefollowing section, however, may be ser-viced by the owner as part of routinemaintenance.NOTICEECA10550The carburetor has been set and ex-tensively tested at the Yamaha fac-tory. Changing these settingswithout sufficient technical knowl-edge may result in poor perfor-mance of or damage to the engine.EAU44390Adjusting the engine idlingspeedThe engine idling speed must be ad-justed when necessary.1. Start the engine and thoroughlywarm it up.2. Turn the throttle stop screw untilthe engine runs at the lowest pos-sible speed.3. To increase the engine idlingspeed, turn the throttle stop screwin direction (a). To decrease theengine idling speed, turn the throt-tle stop screw in direction (b).1. Washer11. Throttle stop screwU1SN81E0.book Page 14 Tuesday, June 12, 2012 3:17 PM