26 STANDARDS
244
JASO T903 MA2
Different technical development directions required a separate specification for motorcycles
–
the
JASO T903 MA2
standard.
Earlier, engine oils from the automobile industry were used for motorcycles because there was no separate motor-
cycle specification.
Whereas long service intervals are demanded for automobile engines, the focus for motorcycle engines is on high
performance at high engine speeds.
In most motorcycle engines, the transmission and clutch are lubricated with the same oil.
The
JASO T903 MA2
standard meets these special requirements.
SAE
The SAE viscosity classes were defined by the Society of Automotive Engineers and are used for classifying oils
according to their viscosity. The viscosity describes only one property of oil and says nothing about quality.
Summary of Contents for 390 Duke AR 2019
Page 1: ...OWNER S MANUAL 2019 390 Duke Art no 3213939en ...
Page 2: ......
Page 22: ...4 VIEW OF VEHICLE 20 4 1 View of vehicle front left example V01275 10 ...
Page 24: ...4 VIEW OF VEHICLE 22 4 2 View of vehicle rear right example V01276 10 ...
Page 47: ...COMBINATION INSTRUMENT 7 45 ...
Page 48: ...7 COMBINATION INSTRUMENT 46 7 5 Indicator lamps F00900 01 ...
Page 51: ...COMBINATION INSTRUMENT 7 49 ...
Page 52: ...7 COMBINATION INSTRUMENT 50 7 6 Display M01580 11 ...