10 TUNING THE CHASSIS 2910.8 Checking the riding sag of the shock absorber400990-10– Measure distance A of the unloaded rear wheel. ( p. 28)– With another person holding the motorcycle, the rider, wearing full protective cloth-ing, sits on the seat in a normal sitting position (feet on footrests) and bounces upand down a few times.The rear wheel suspension levels out.– Another person now measures the distance between the rear axle and the fixedpoint.– Note down the value as dimension C.InfoThe riding sag is the difference between measurements A and C.– Check the riding sag.GuidelineRiding sag (125 TC EU) 100 mm (3.94 in)Riding sag (250 TC EU) 100 mm (3.94 in)» If the riding sag differs from the specified measurement:– Adjust the riding sag. x ( p. 30)10.9 Adjusting the spring preload of the shock absorber xCautionDanger of accidents Disassembly of pressurized parts can lead to injury.– The shock absorber is filled with high density nitrogen. Adhere to the description provided. (Your authorized Husqvarna work-shop will be glad to help.)InfoBefore changing the spring preload, make a note of the present setting, e.g., by measuring the length of the spring.Preparatory work– Raise the motorcycle with the lift stand. ( p. 33)– Remove the right side cover. ( p. 45)– Remove the main silencer. ( p. 44)– Remove the shock absorber. x ( p. 41)– After removing the shock absorber, clean it thoroughly.401025-10Main work– Loosen screw 1.– Turn adjusting ring 2 until the spring is no longer under tension.Hook wrench (T106S)– Measure the overall spring length while the spring is not under tension.– Tighten the spring by turning adjusting ring 2 to measurement A.GuidelineSpring preload (125 TC EU) 12 mm (0.47 in)Spring preload (250 TC EU) 12 mm (0.47 in)InfoDepending on the static sag and/or the riding sag, it may be necessary toincrease or decrease the spring preload.– Tighten screw 1.GuidelineScrew, shock absorber adjusting ring M5 5 Nm (3.7 lbf ft)