Honda CRF1100A 2021 Owner's Manual page 359

Assist-slipper Clutch System
CRF1100A/AL/AL2/AL4
The assist-slipper clutch system helps to prevent
the rear tyre from locking up when the
deceleration of your vehicle produces a strong
engine braking effect. It also makes the clutch
lever operation feel lighter.
Use only MA classification engine oil for your
vehicle. Using engine oil other than MA
classification oil could result in damage to the
assist-slipper clutch system.
Throttle by Wire System
This model is equipped with a Throttle by Wire
System.
Do not put magnetized items or items
susceptible to magnetic interference near the
right handlebar switches.
Instruments, Controls, & Other Features
DRL, Automatic Brightness Control and
Background Control
Ambient brightness is detected by the
photosensor.
Do not damage or cover the photosensor.
III IN type
Otherwise, the automatic brightness control and
background control may not work properly.
II FO, III FO, II MA, III MA, KO, III KO type
Otherwise, the DRL, automatic brightness control
and background control may not work properly.
Photosensor
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