Spring Preload - BMW HP2 ENDURO Manual

Take a grip close to the top
of the pump, compress the
pump and disengage it from
the top mount.
Tilt the pump in toward the
motorcycle and remove it
from the bottom holder.
Remove the pump from the
frame.
Installing the pneumatic
pump
Manoeuvre the pump be-
hind the frame and seat the
bottom of the pump in bot-
tom mount 1.
Take a grip close to the top
of the pump, compress the
pump and engage it in the
top mount in the seat shell.
Pull the retaining strap tight
around the pump and the
frame tube.

Spring preload

Air Damping System
This motorcycle has an air-
filled rear suspension system
known as the Air Damping
System.
In this system, it is a volume
of air in an enclosed cham-
ber, not a steel spring, that
absorbs the shocks transmit-
ted by the wheel to the sus-
pension.
Spring preload of the
Air Damping System is
adjusted to suit total weight
(motorcycle plus rider, plus
luggage) by changing the air
pressure in this system. You
can use the valve on the Air
Damping System to reduce
pressure, or you can increase
pressure by connecting the
pump to this valve.
Fore-and-aft tilt indicator
The fore-and aft tilt indicator
on the motorcycle has much
the same function as a spir-
it level, and indeed it is very
similar in appearance to an
ordinary bubble level. The air-
pressure setting is ideal when
the fore-and-aft tilt indicat-
or shows that the motorcycle
carrying rider and load is hori-
zontal.
Always check the air pressure
before riding off.
Adjusting air pressure
It is essential to set the pres-
sure in the Air Damping Sys-
tem to suit the load carried
on the motorcycle. Increase
4
45
z