Checking Cylinder Head - Panterra Fusion Service Manual

NIKOTA USA: PANTERRA SCOOTER SERVICE MANUAL
7. Cylinder Head Valve
Breaking Down of Cylinder Head
1. Use valve spring compressor to take off
lock clip and supporter and valve spring, spring
seat valve.
Place parts in sequence after
disassembling and assemble in reverse
order during reassembly.
2. Clean carbon deposits from combustion
chamber.
3. Get rid of gasket material on cylinder head
surface.
Don't damage cylinder head sealing
surface.

Checking Cylinder Head

1. Check spark plug hole for damage.
2. Check valve spring seats for alignment.
Used limit: 0.05mm (.002 in.) above align
•Measure length of inner and outer springs.
Used limit:
•Change if inner spring below 26.1mm
(1.03 in.).
•Change if outer spring is below 30.5mm
(1.2 in.).
CHAPTER 7: CYLINDER HEAD VALVE
2
2
7-9
1
SPRING
VALVE
COMPRESSOR
COMBUSTION
CHAMBER
79