Yamaha YZ250FM 2021 Owner's Service Manual

CHASSIS3-31ment.• The length of the spring (installed) changes 1.5mm (0.06 in) per turn of the adjusting ring.e. Tighten the locknut.Rebound dampingNOTICEECA24370Do not turn the adjuster forcibly beyond itsadjusting range.1. Adjust:• Rebound dampinga. Turn the adjuster “1” in the direction of “a”or “b” to make an adjustment.TIPAlthough the total number of clicks of a dampingforce adjusting mechanism may not exactlymatch the above specifications due to small dif-ferences in production, the actual number ofclicks always represents the entire adjustingrange. To obtain a precise adjustment, it wouldbe advisable to check the number of clicks ofeach damping force adjusting mechanism andto modify the specifications as necessary.Compression damping (for fast compres-sion damping)NOTICEECA24370Do not turn the adjuster forcibly beyond itsadjusting range.1. Adjust:• Compression damping (for fast compressiondamping)a. Turn the adjuster “1” in the direction of “a”or “b” to make an adjustment.TIPTo obtain a precise adjustment, it is advisable tocheck the actual total number of turns of thedamping force adjusting mechanism. This ad-justment range may not exactly match the spec-ifications listed due to small differences inproduction.Direction “a”Rebound damping is increased (sus-pension is harder).Direction “b”Rebound damping is decreased (sus-pension is softer).Rebound dampingMinimum (soft)30 click(s) in direction “b”*Standard10 click(s) in direction “b”*Maximum (hard)0 click(s) in direction “b”** With the adjusting screw fully turned in di-rection “a”bb ccDirection “a”Compression damping is increased(suspension is harder).Direction “b”Compression damping is decreased(suspension is softer).Fast compression dampingMinimum (soft)2 turn(s) in direction “b”*Standard1 turn(s) in direction “b”*Maximum (hard)0 turn(s) in direction “b”** With the adjusting screw fully turned in di-rection “a”ab1