Yamaha YZ250F(N)/LC Owner's Service Manual

Contents

7 - 21T U NSETTINGEC72H002Suspension settingl Front forkNOTE:l If any of the following symptoms is experienced with the standard position as the base, makeresetting by reference to the adjustment procedure given in the same chart.l Before any change, set the rear shock absorber sunken length to the standard figure 90 ~100 mm (3.5 ~ 3.9 in).SymptomSectionCheck AdjustJump LargegapMediumgapSmallgapStiff over entire range C C CCompression dampingOil level (oil amount)SpringTurn adjuster counterclockwise (about 2 clicks) todecrease damping.Decrease oil level by about 5 ~ 10 mm (0.2 ~ 0.4 in).Replace with soft spring.Unsmooth movementover entire range C C C COuter tubeInner tubeUnder bracket tighteningtorqueCheck for any bends, dents, and other noticeablescars, etc. If any, replace affected parts.Retighten to specified torque.Poor initialmovement C Rebound dampingOil sealTurn adjuster counterclockwise (about 2 clicks) todecrease damping.Apply grease in oil seal wall.Soft over entire range,bottoming out C CCompression dampingOil level (oil amount)SpringTurn adjuster clockwise (about 2 clicks) to increasedamping.Increase oil level by about 5 ~ 10 mm (0.2 ~ 0.4 in).Replace with stiff spring.Stiff toward stroke end C Oil level (oil amount) Decrease oil level by about 5 mm (0.2 in).Soft toward stroke end,bottoming out C Oil level (oil amount) Increase oil level by about 5 mm (0.2 in).Stiff initial movement C C C C Compression damping Turn adjuster counterclockwise (about 2 clicks) todecrease damping.Low front, tending tolower front posture C CCompression dampingRebound dampingBalance with rear endOil level (oil amount)Turn adjuster clockwise (about 2 clicks) to increasedamping.Turn adjuster counterclockwise (about 2 clicks) todecrease damping.Set sunken length for 95 ~ 100 mm (3.7 ~ 3.9 in) whenone passenger is astride seat (lower rear posture).Increase oil level by about 5 mm (0.2 in).“Obtrusive” front, tend-ing to upper front pos-tureC CCompression dampingBalance with rear endSpringOil lever (oil amount)Turn adjuster counterclockwise (about 2 clicks) todecrease damping.Set sunken length for 90 ~ 95 mm (3.5 ~ 3.7 in) whenone passenger is astride seat (upper rear posture).Replace with soft spring.Decrease oil level by about 5 ~ 10 mm (0.2 ~ 0.4 in).