Checking The Clutch Springs; Checking The Clutch Housing; Checking The Clutch Boss - Yamaha YZF-R1 2007 Service Manual

Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keys
Clutch plate "2"
Part No.
5VY-16325-00
4B1-16325-00
NOTE:
When adjusting the clutch assembly width [by
replacing the clutch plate(s)], be sure to
replace the clutch plate "1" fast.
After replacing the clutch plate "1", if specifica-
tions cannot be met, replace the clutch plate
"2".
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EAS25140

CHECKING THE CLUTCH SPRINGS

The following procedure applies to all of the
clutch springs.
1. Check:
• Clutch spring
Damage → Replace the clutch springs as a
set.
2. Measure:
• Clutch spring free length "a"
Out of specification → Replace the clutch
springs as a set.
Clutch spring free length
43.80 mm (1.72 in)
Limit
41.61 mm (1.64 in)
email: info@motomatrix.co.uk
Thickness
2.0 mm (0.079 in) STD
2.3 mm (0.091 in)
EAS25150

CHECKING THE CLUTCH HOUSING

1. Check:
• Clutch housing dogs
Damage/pitting/wear → Deburr the clutch
housing dogs or replace the clutch hous-
ing.
NOTE:
Pitting on the clutch housing dogs will cause
erratic clutch operation.
2. Check:
• Bearing
Damage/wear → Replace the bearing and
clutch housing.
EAS25160

CHECKING THE CLUTCH BOSS

1. Check:
• Clutch boss splines
Damage/pitting/wear → Replace the clutch
boss.
NOTE:
Pitting on the clutch boss splines will cause
erratic clutch operation.
2. Check:
• Clutch boss
Cracks/damage → Replace.
5-49
CLUTCH