Honda TRX400EX FOURTRAX 1999, Service Manual

Page: 103 / 263

CYLINDER
Grease the cot-
to
ease compressor.
Install the valve spring cotters using the valve spring
TOOL
Valve spring compressor
CAUTION:
To prevent loss of tension, do n o t compress the
valve springs more than necessary t o install the cot-
ters.
Support the cylinder head so that the valve heads
will not contact anything that cause damage.
Tap the valve stems gently with two plastic hammers
as shown to seat the cotters firmly.
Coat a new O-ring with oil and install it into the
groove in the carburetor insulator.
Install the carburetor insulator onto the cylinder head
and tighten the three bolts securely.
Clean the cylinder mating surface.
Make sure that the cam chain guide bosses are posi-
tioned in the cylinder grooves.
Install the dowel pins and a new gasket.
7