seats YAMAHA TTR90 2000 Owners Manual
[x] Cancel search | Manufacturer: YAMAHA, Model Year: 2000, Model line: TTR90, Model: YAMAHA TTR90 2000Pages: 287, PDF Size: 6.77 MB
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ENG
VALVES AND VALVE SPRINGS
ASSEMBLY AND INSTALLATION
1. Apply:
l
Molybdenum disulfide oil
(onto the valve stem and valve stem
seal)
2. Install:
l
Valve spring seats
l
Valves
l
Valve springs
l
Valve spring retainers
NOTE:
l
Make sure that each valve is installed in its
original place, also referring to the embossed
mark as follows.
Intake: āGā
Exhaust āLā
l
Install the valve springs with the larger pitch
a
facing upwards.
b
Smaller pitch
New
3. Install:
l
Valve cotters
NOTE:
While compressing the valve spring with a
valve spring compressor and attachment
1
install the valve cotters.
Valve spring compressor:
YM-01253/90890-01253
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.