Checking The Valve Lifters - Yamaha YZF-R7 Owner's Service Manual

Ofrecido por www.electromanuales.com
VALVES AND VALVE SPRINGS
2. Measure:
• compressed spring force a
Out of specification → Replace the
valve spring.
b Installed length
Compressed spring force
(installed)
Inner spring
Intake valve spring
Exhaust valve spring
Outer spring
Intake valve spring
Exhaust valve spring
3. Measure:
• valve spring tilt a
Out of specification → Replace the
valve spring.
Maximum spring tilt
Inner spring
Intake valve spring
Exhaust valve spring
Outer spring
Intake valve spring
Exhaust valve spring
EB403430

CHECKING THE VALVE LIFTERS

The following procedure applies to all of
the valve lifters.
1. Check:
• valve lifter
Damage/scratches
valve lifters and cylinder head.
4 - 29
ENG
10.30 ~ 11.93 kg at
27.96 mm
(22.7 ~ 26.3 lb at 1.10 in)
10.81 ~ 12.44 kg at
24.6 mm
(23.8 ~ 27.4 lb at 0.97 in)
23.45 ~ 27.12 kg at
32.03 mm
(51.7 ~ 59.8 lb at 1.26 in)
29.16 ~ 33.55 kg at
30.25 mm
(62.3 ~ 74.0 lb at 1.19 in)
1.4 mm (0.055 in)
1.3 mm (0.051 in)
1.6 mm (0.063 in)
1.5 mm (0.059 in)
→
Replace the