Honda Activa SCV110, Service Manual Digest

Page: 101 / 230

7-20
CYLINDER HEAD/VALVES
INSPECTION
Check each cam lobe for wear, scratches or scoring.
Measure the cam lobe height.
SERVICE LIMITS: Intake: 32.041 mm (1.2615 in)
Exhaust: 31.791 mm (1.2516 in)
Turn the outer race of each camshaft bearing with your
finger.
The bearing should turn smoothly and quietly.
Check that the inner race of each bearing fits tightly on
the camshaft.
Replace the camshaft assembly if the bearing does not
BOLTS
CAMSHAFT INSTALLATION
Clean each parts of the assembly in solvent and
lubricate them with clean engine oil.
Install the camshaft into the cylinder head by aligning the
cam lobes with the cutouts in the holder.
Install the retainer bolt (1 no.).
Install the following:
— Cam sprocket (page 7-17).
— Muffler assembly (page 2-8).
— Cooling fan and cover (page 11-4)
— Intake/Exhaust shrouds and seal (page 7-4)
— Engine (page 6-4)
CYLINDER HEAD COVER
EXHAUST SHROUD
INTAKE SHROUD
turn smoothly, quietly, or if it fits loosely on the camshaft.
CAMSHAFT RUNOUT
Support both ends of the camshaft and check the
camshaft runout with a dial indicator.
Actual runout is 1/2 the total indicator reading.
SERVICE LIMIT: 0.05 mm (0.002 in)