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(Setting of back torque limiter of clutch).<br />
A clutch with a back torque limiter mechanism is installed in the YZF-R1 engines. The<br />
operation of the back torque limiter can be adjusted through adjusting: 2 the number of SHIMs<br />
(set up for the kit); a the number of springs; b the whole thickness of the clutch plate; and the<br />
strength of c spring (set up for the kit) of the slipper clutch setting set.<br />
(Recommended setting method)<br />
To begin with, the dimensions of the clutch are re-set to the standard values. (For details,<br />
please refer to the service manual published from YAMAHA MOTOR CO. LTD.<br />
If you attach the slipper clutch setting of kit 1 2 , make it the same as the standard setting.<br />
When decreasing the number of SHIMs (standard setting is three) of slipper clutch setting set,<br />
the back torque limiter tends to be effective (Engine braking becomes less effective).<br />
Standard<br />
3 2 1 0<br />
effective<br />
(Engine braking becomes<br />
less effective)<br />
Further, when decreasing the number of a spring (the number of standard setting is three) to<br />
two, the back torque limiter becomes effective (Engine braking becomes less effective).<br />
The clutch spring c can be either the kit item or the standard item.<br />
If you mount the clutch spring from the kit, the back torque limiter tends to be less effective (the<br />
engine brake becomes stronger).<br />
NOTICE<br />
When decreasing the number of a spring to two, the caution should be taken to surely<br />
use three pieces of SHIMs for the slipper clutch setting set. If its number being less than<br />
the above, the less load may be supported so as to exert serious influences on driving.<br />
Decreasing the number of a<br />
spring to one is not allowed.<br />
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