Yamaha VINO YJ50RAP, Руководство по обслуживанию

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3 - 13
CHK
ADJ
MEASURING THE COMPRESSION PRESSURE/
CHECKING THE ENGINE OIL LEVEL
d. If the compression pressure is below the
minimum specification, squirt a few drops of
oil into the cylinder and measure again.
Refer to the following table.
▲▲▲ ▲ ▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲ ▲▲▲
7. Install:
• spark plug
8. Connect:
• spark plug cap
Compression pressure
(with oil applied into the cylinder)
Reading Diagnosis
Higher than with-
out oil Piston wear or
damage
→
Repair.
Same as without
oil
Piston ring(s), cyl-
inder head gasket
or piston possibly
defective
→
Repair.
T
R
.
.
20 Nm (2.0 m · kg, 14 ft · lb)
EAS00072
CHECKING THE ENGINE OIL LEVEL
1. Stand the scooter on a level surface.
NOTE:
• Place the scooter on a suitable stand.
• Make sure the scooter is upright.
2. Check:
• oil level warning light
1
Refer to “SIGNAL SYSTEM” in chapter 7.
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