Adjusting The Rear Shock Absorber Assembly; Checking The Engine Oil Level - Yamaha YZF-R25 Service Manual

EAS30655
ADJUSTING THE REAR SHOCK ABSORBER
ASSEMBLY
EWA13120
WARNING
Securely support the vehicle so that there is
no danger of it falling over.
Spring preload
ECA13590
NOTICE
Never go beyond the maximum or minimum
adjustment positions.
1. Adjust:
• Spring preload
▼ ▼▼▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼
a. Adjust the spring preload with the special
wrench "1" and extension bar "2" included in
the owner's tool kit.
b. Turn the adjusting ring "3" in direction "a" or
"b".
c. Align the desired position on the adjusting
ring with the stopper "4".
Direction "a"
Spring preload is increased (suspen-
sion is harder).
Direction "b"
Spring preload is decreased (suspen-
sion is softer).
Spring preload adjusting positions
Minimum
1
Standard
3
Maximum
7
3
3 2 1
7 6 5 4
b
4
▲ ▲▲▲ ▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲
▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼
1
2
a
▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲
PERIODIC MAINTENANCE
EAS30656

CHECKING THE ENGINE OIL LEVEL

1. Stand the vehicle on a level surface.
TIP
• Place the vehicle on a suitable stand.
• Make sure the vehicle is upright.
2. Start the engine, warm it up for several min-
utes, and then turn it off.
3. Check:
• Engine oil level
The engine oil level should be between the
minimum level mark "a" and maximum level
mark "b".
Below the minimum level mark → Add the
recommended engine oil to the proper level.
▼▼▼
TIP
Before checking the engine oil level, wait a few
minutes until the oil has settled.
b
a
–20 –10 0
▲▲▲
ECA13361
NOTICE
• Engine oil also lubricates the clutch and the
wrong oil types or additives could cause
clutch slippage. Therefore, do not add any
3-21
Recommended brand
YAMALUBE
Type
SAE 10W-30, 10W-40, 10W-50,
15W-40, 20W-40 or 20W-50
Recommended engine oil grade
API service SG type or higher,
JASO standard MA
10