Yamaha WR250FM service manual Chassis, USA, CDN Europe AUS, NZ, ZA

MAINTENANCE SPECIFICATIONS

SPEC

CHASSIS

Item	Standard			Limit
Steering system:
Steering bearing type	Taper roller bearing			----
Front suspension:	USA, CDN	EUROPE	AUS, NZ, ZA
Front fork travel	300 mm (11.8 in)	←	←
Fork spring free length	460 mm (18.1 in)	←	←
Spring rate, STD	K = 4.31 N/mm	K = 4.12 N/mm	K = 4.22 N/mm
	(0.44 kg/mm,	(0.42 kg/mm,	(0.43 kg/mm,
	24.6 lb/in)	23.5 lb/in)	24.1 lb/in)
Optional spring/spacer	Yes	←	←
Oil capacity	568 cm3	573 cm3	578 cm3
	(20.0 lmp oz,	(20.2 lmp oz,	(20.3 lmp oz,
	19.2 US oz)	19.4 US oz)	19.5 US oz)
Oil level	135 mm (5.31 in)	130 mm (5.12 in)	125 mm (4.92 in)
<Min.~Max.>	80 ~ 150 mm	←	←
(From top of outer tube with inner	(3.15 ~ 5.91 in)
tube and damper rod fully com-
pressed without spring.)
Oil grade	Suspension oil	←	←
	“01”
Inner tube outer diameter	46 mm (1.81 in)	←	←
Front fork top end	5 mm (0.20 in)	←	10 mm (0.39 in)
Rear suspension:	USA, CDN	EUROPE	AUS, NZ, ZA
Shock absorber travel	132 mm (5.20 in)	←	←
Spring free length	260 mm (10.24 in)	←	←
Fitting length	245 mm (9.65 in)	246.5 mm (9.70 in)	245 mm (9.65 in)
<Min.~Max.>	240.5 ~ 258.5 mm	←	←
	(9.47 ~ 10.18 in)
Spring rate, STD	K = 49.0 N/mm	K = 46.0 N/mm	K = 50.0 N/mm
	(5.00 kg/mm,	(4.70 kg/mm,	(5.10 kg/mm,
	280.0 lb/in)	263.2 lb/in)	285.6 lb/in)
Optional spring	Yes	←	←
Enclosed gas pressure	1,000 kPa	←	←
	(10 kg/cm2, 142 psi)
Swingarm:
Swingarm free play limit
End	----			1.0 mm
				(0.04 in)

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