2009 Yamaha Motorsports Apex LTX Owners Manual - Page 27

2009 Yamaha Motorsports Apex LTX Manual

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Control functions Your Yamaha engine has been designed to use regular unleaded gasoline with a pump octane number [(R+M)/2] of 86 or higher, or a research octane number of 91 or higher. ECS00080 3 1 (a) 2 NOTICE G G G G Oxygenated fuels (gasohol) containing a maximum 5% of ethanol can be used, although richer jetting may be required to prevent engine damage. Consult a Yamaha dealer. Gasohol containing methanol is not recommended. Make sure that snow or ice does not enter the fuel tank when refueling. Do not use alcohol deicers or water absorbing additives with oxygenated fuel. The fuel tank should be filled with straight gasoline as specified. (b) 1. Locknut 2. Distance A 3. Spring preload adjusting nut 1. 2. ESU10871 Suspension The suspension can be adjusted to suit rider preference. A softer setting, for example, may provide greater rider comfort, while a harder setting may allow more precise handling and control over certain types of terrain or riding conditions. If you are not familiar with suspension adjustments, have a Yamaha dealer make these adjustments. ESU10893 Loosen the locknut. To increase the spring preload and thereby harden the suspension, turn the adjusting nut in direction (a). To decrease the spring preload and thereby soften the suspension, turn the adjusting nut in direction (b). TIP The spring preload setting is determined by measuring distance A, shown in the illustration. The longer distance A is, the higher the spring preload; the shorter distance A is, the lower the spring preload. Spring preload setting*: Minimum (soft): RX10R 130.1 mm (5.12 in) RX10LT 132.5 mm (5.22 in) RX10MT 134.6 mm (5.30 in) Standard: RX10R / RX10LT 134.5 mm (5.30 in) RX10MT 134.6 mm (5.30 in) Maximum (hard): RX10R 144.5 mm (5.69 in) RX10LT 142.5 mm (5.61 in) RX10MT 144.6 mm (5.69 in) * Distance A changes 1.5 mm (0.06 in) with each full turn of the adjusting nut. Adjusting the spring preload of the front shock absorbers (RX10R / RX10MT / RX10LT) EWS00720 WARNING The spring preload of the left and right shock absorbers must be adjusted to the same setting. Uneven settings can cause poor handling and loss of stability. The spring preload can be adjusted by turning the adjusting nuts. Adjust the spring preload as follows. 21

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Control functions
21
Your Yamaha engine has been designed to
use regular unleaded gasoline with a pump
octane number [(R+M)/2] of 86 or higher, or a
research octane number of 91 or higher.
NOTICE
ECS00080
●
Oxygenated fuels (gasohol) containing
a maximum 5% of ethanol can be used,
although richer jetting may be required
to prevent engine damage. Consult a
Yamaha dealer. Gasohol containing
methanol is not recommended.
●
Make sure that snow or ice does not en-
ter the fuel tank when refueling.
●
Do not use alcohol deicers or water ab-
sorbing additives with oxygenated fuel.
●
The fuel tank should be filled with
straight gasoline as specified.
ESU10871
Suspension
The suspension can be adjusted to suit rider
preference. A softer setting, for example, may
provide greater rider comfort, while a harder
setting may allow more precise handling and
control over certain types of terrain or riding
conditions.
If you are not familiar with suspension adjust-
ments, have a Yamaha dealer make these
adjustments.
ESU10893
Adjusting the spring preload of the
front shock absorbers (RX10R /
RX10MT / RX10LT)
WARNING
EWS00720
The spring preload of the left and right
shock absorbers must be adjusted to the
same setting. Uneven settings can cause
poor handling and loss of stability.
The spring preload can be adjusted by turning
the adjusting nuts.
Adjust the spring preload as follows.
1.
Loosen the locknut.
2.
To increase the spring preload and there-
by harden the suspension, turn the ad-
justing nut in direction (a). To decrease
the spring preload and thereby soften the
suspension, turn the adjusting nut in di-
rection (b).
TIP
The spring preload setting is determined by
measuring distance A, shown in the illustra-
tion. The longer distance A is, the higher the
spring preload; the shorter distance A is, the
lower the spring preload.
1. Locknut
2.
Distance A
3.
Spring preload adjusting nut
Spring preload setting*:
Minimum (soft):
RX10R
130.1 mm (5.12 in)
RX10LT 132.5 mm (5.22 in)
RX10MT 134.6 mm (5.30 in)
Standard:
RX10R / RX10LT 134.5 mm (5.30
in)
RX10MT 134.6 mm (5.30 in)
Maximum (hard):
RX10R 144.5 mm (5.69 in)
RX10LT 142.5 mm (5.61 in)
RX10MT 144.6 mm (5.69 in)
* Distance A changes 1.5 mm (0.06 in)
with each full turn of the adjusting nut.
(a)
(b)
1
3
2