Troubleshooting; Service Information - Honda CRF50F 2004-2015 Service Manual

LUBRICATION SYSTEM
SERVICE INFORMATION
GENERAL
ACAUTION
Used engine oil may cause skin cancer if repeatedl y lett in con tact with the skin for prolonged periods. Although this is
unlikely unless you handle used oil on a daily basis, it Is still advisable to thoroughly wash your hands with soap and
water as soon as possible after handling used oit.
• The oil pump service requires engine removal.
• The service procedures in this section must be performed with the engine oil drained.
• When (emalling and installing the oil pump. use care not to allow dust or dirt 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 and thai oil pressure is correct.
SPECIFICATIONS
TORQUE VALUES
Oil pump mounting screw
Oil pump cover screw
TROUBLESHOOTING
Engine oil level too low, high oil consumption
• Normal oil consumption
• External oil leak
c~;:::~;;~o.~r equivalent motor
·1
A classification: SG or higher
T 903 Standard: MA
7.4 N·m (0.75 kgf·m, 5.5IbHt)
4.7 N·m (0.48 kgf·m , 3.5 Ibf.ft)
• Worn piston ring or Incorrect piston ring installation
• Worn cylinder
• Worn valve guide or stem seal
• Oil pump worn or damaged
all contam ination
• Oit not changed often enough
• Worn piston ring or incorrect piston ring installation
• Worn valve guide or stem seal
• Clogged oil strainer screen
Unit: mm
4-3