4 - 20
ENG
VALVES AND VALVE SPRINGS
ASSEMBLY AND INSTALLATION
1. Apply:
●
Molybdenum disulfide oil
(onto the valve stem and valve stem
seal)
2. Install:
●
Valve stem seats
●
Valves
●
Valve springs
●
Valve spring retainers
NOTE:
●
Make sure that each valve is installed in its
original place, also referring to the embossed
mark as follows.
Intake: “G”
Exhaust: “L”
●
Install the valve springs with the larger pitch
a
facing upwards.
b
Smaller pitch
New
3. Install:
●
Valve cotters
NOTE:
While compressing the valve spring with a
valve spring compressor and attachment
1
install the valve cotters.
Valve spring compressor:
YM-4019/90890-04019
4. To secure the valve cotters onto the
valve stem, lightly tap the valve tip with a
piece of wood.
CAUTION:
Hitting the valve tip with excessive force
could damage the valve.
Summary of Contents for TT-R90(T)
Page 45: ...GEN INFO MEMO...
Page 57: ...GEN INFO MEMO...
Page 109: ...SPEC MEMO...
Page 319: ...ELEC MEMO...
Page 331: ...ELEC MEMO...
Page 347: ...ELEC MEMO...
Page 353: ...ELEC MEMO...
Page 363: ......