Honda CB900F Service Manual page 79

LUBRICATION SYSTEM
TOOLS
Oil pressure gauge set
Oil pr essure gauge attachment
Oil filte r w rench
TROUBLESHOOTING
07506-3000000
075 1O-MJ1 0l00
07HAA-PJ 70 100
Equiva lent comme rcially availa ble in U.S.A
Eq uivalent comme rcially available in U.S.A
Oil level too low
Oil co ns um pt io n
External oil leak
Worn piston rings
Im pr op erl y installe d pis to n rin gs
Wo rn cyli nders
Wo rn stem seals
Worn va lve gu ide
low oil pressure
Oil level low
Clogged oil strainer
Faulty o il pump
Internal oil leak
Inco rrect o il bein g used
No oil pressure
Oil level too low
Oil pre ssur e relie f valve st uck open
Bro ken oil pum p dri ve chain
Broken oil pump d riv e or d riv en sprocket
Dam aged oil pu mp
Internal oil leak
4-2
High
oil pressure
Oil press ure relief va lve st uck clo sed
Clogged oil filter, gallery or metering orifice
Inco rr ect oil being used
Oil
contamination
Oil o r filte r not changed o fte n enoug h
• Wo rn pi ston ri ngs
Oil emulsification
Blown cyli nde r head gasket
Leaky coo lant passage
Ent ry of water