Yamaha MTN850-AH Owner's Manual

Contents

Periodic maintenance and adjustment8-21123456789101112Tire informationThis model is equipped with tubelesstires and tire air valves.Tires age, even if they have not beenused or have only been used occasion-ally. Cracking of the tread and sidewallrubber, sometimes accompanied bycarcass deformation, is an evidence ofageing. Old and aged tires shall bechecked by tire specialists to ascertaintheir suitability for further use.WARNINGEWA10902 The front and rear tires shouldbe of the same make and de-sign, otherwise the handlingcharacteristics of the motorcy-cle may be different, whichcould lead to an accident. Always make sure that the valvecaps are securely installed toprevent air pressure leakage. Use only the tire valves andvalve cores listed below toavoid tire deflation during a ride.After extensive tests, only the tires list-ed below have been approved for thismodel by Yamaha.WARNINGEWA10601This motorcycle is fitted with su-per-high-speed tires. Note the fol-lowing points in order to make themost efficient use of these tires. Use only the specified replace-ment tires. Other tires may runthe danger of bursting at superhigh speeds. Brand-new tires can have a rela-tively poor grip on certain roadsurfaces until they have been“broken in”. Therefore, it is ad-visable before doing anyhigh-speed riding to ride con-servatively for approximately100 km (60 mi) after installing anew tire. The tires must be warmed upbefore a high-speed run. Always adjust the tire air pres-sure according to the operatingconditions.1. Tire air valve2. Tire air valve core3. Tire air valve cap with sealFront tire:Size:120/70 ZR17 M/C (58W)Manufacturer/model:BRIDGESTONE/S20FDUNLOP/D214FRear tire:Size:180/55 ZR17M/C (73W)Manufacturer/model:BRIDGESTONE/S20RDUNLOP/D214FRONT and REAR:Tire air valve:TR412Valve core:#9100 (original)