Honda Nighthawk CB 750 1991 Service Manual page 81

Cylinder Head/Cvlinder/Piston
CAUTION
-
Do not compress the valve springs more than necessary. LOT,
-
Mark all parts during disassembly so they can be reinstalled in their original positions.
Remove carbon deposits from the combustion chamber and clean off the head gasket surface before assembly.
-Avoid damaging the gasket surface.
-Gaskets will come off easier if they soaked in solvent.
For valve guide replacement, see section 9 of the Common Service Manual.
Requisite Service
Cylinder head removal/installation (page
7-8)
Procedure
1
Q'tv
1
Remarks
Disassembly Order
Valve spring cotter
Retainer
Valve spring
Inlet valve
Exhaust valve
Valve stem seal
Valve spring seat
Valve guide
O-ring
Assembly is in the reverse order of disassembly.
To prevent loss of spring tension, do not compress the v a l v ~
more than necessaty.
Install them with the tightly wound coils facing down
To avoid damaging the stem seal, turn the valve slowly
when inserting.