Lubrication System Service Information; Lubrication System Specifications; Lubrication System Torque Values; Lubrication System Troubleshooting - Honda 2000 XR50R Service Manual

4. LUBRICATION SYSTEM
LUBRICATION SYSTEM DIAGRAM
SERVICE INFORMATION
SERVICE INFORMATION
GENERAL
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TROUBLESHOOTING
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Oil PUMP
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• When the engine must be running to do some work, make sura the .r"a Is well-ventilated. Never run the engine in an
,meID.eeI
area. The
exhaust cont.ins poisonous carbon monoxide gas that may CIIU'. loss
of
consciousness and lead to
death. Run the engine In
an
open 8rea or with
an
flxhausf evacuation system
in 8n
enclosed arBa.
• Used engine oil may ca use skin cancer if repeatedly left In contact with the skin for prolonged periods. Although this is
unlikely unless you handle us.d oil on " daily basis,
if
is still advisable to thoroughly wash your hands with soap and
w afe,
85
soon
as
possible after handling usttd oil. KEEP OUT OF REACH
OF
CHILDREN.
• The oil pump can
be
serviced w ith the engine installed in the frame.
• The service procedures in this section must be perform ed w ith the eng ine oi l drained.
• When removing and installing the oil pump, use care not to allow dust or di rt to enter the engine .
• If any portion of the oil pump is worn beyond the specified service limits, replace the oil pump as an assembly.
• After the oil pump has been installed, check that there are no oil leaks.
SPECIFICATION S
ITEM
STANDARD
. I
SERVICE
LIMIT
pump rotor
TORQUE VALUES
Oil pump mounting screw
Oil pu mp cover screw
TROUBLESHOOTING
Engine oil level too low - high oil consumption
• Norm al oil consu mption
• Extern al oil leak
. I
4-stroke oil or equ ivalent
motor oil
API service classification SF or SG
8 N·m (0.8 kgf·m , 5.8 Ibf· ftl
5 N·m (0.5 kgf.m , 3.6Ibf·ft)
Oil contamination
• Oil not change often enough
• Worn piston ring or incorrect piston ring installation
• Worn piston ring or incorrect piston ring installation • Worn valve guide or stem seal
• Worn cylinder • Clogged oil strainer screen
• Worn valve guide or stem seal
• Oil pump worn or da maged
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