Service And Inspection - Honda CB350 Repair Manual

ENGINE AND TRANSMISSION
53
10. Remove the cam chain tensioner
holder from the top ofthe cylinder head.
Remove the tensioner slipper.
11. Using the rotor bolt, turn the
engine over until one ofthe cam sprocket
bolts is at the top ofthe sprocket, remove
the bolt. Turn the crankshaft one com—
plete turn (360°) and remove the remain—
ing bolt.
12. Slip the cam chain off the sprocket
and remove the cam and sprocket
together. Take care not to let the thrust
washers on the right—side of the cam fall
into the engine. Slip a screwdriver
through the chain to prevent if from fall—
ing through the head.
Remove the cam and sprocket (2 and 3) from the
cam chain (1)
13. Remove the exhaust system and
carburetors.
14. Remove the two 6 mm bolts lo—
cated near either spark plug hole, then
loosen the eight cylinder head nuts grad—
ually and evenly in an "X" pattern until
theyare all loose, then remove them. Lift
the head up and off the cylinder studs,
tapping it around the bottom with a rub—
ber mallet to break it loose if necessary.
Remove the head gasket and the four
dowel pins. If the cylinders are to remain
in place, slip a screwdriver through the
cam chain to prevent it from falling
through the cylinders.
Removing the head (1)
(1)
Removing the cylinders (1)
15. Hold the cam chain up and posi—
tion the pistons so that they are the same
level in the cylinders. Lift the cylinders
up and off the studs. Catch the pistons as
the cylinders are removed so that they do
not become damaged from hitting the
crankcase. Remove the cylinder base gas—
ket and the two dowel pins and stuff a
clean lint—free cloth into the crankcase
around the pistons.
16. Remove the wrist pin circlip from
the outside of each piston, and push the
wrist pin out from the inside.
CAUTION: Do not strike the wrist pin
to remove it as the connecting rod may
be damaged in the attempt. If the wrist
pin resists removal, gently heat the
piston crown with a propane torch and
then try to push the pin out. The wrist
pin circlips once removed should be
discarded and replaced with new ones
upon reassembly.
&
Removing a wrist pin circlip (1) with needlenose
pliers (2). A rag (3) will prevent the circlips from
dropping into the crankcase.
SERVICE AND INSPECTION
The service and inspection procedures
given in the following text are applica—
ble to all models with minor allowances
for differences in construction. Specifica—
tions for individual models are given in
the charts at the end ofthis chapter.