Checkingthe
Intake/Exhaust-Valve
Clearance
ServiceInterval:Aftertherst50hours—Check
theintake/exhaust-valveclearance.
Adjust,ifnecessary.
Every500hours—Checkthe
intake/exhaust-valveclearance.Adjust,
ifnecessary.
Ifthevalveclearanceisinthefollowingrange,youdo
notneedtoadjusttheclearance.
•Intake—3.3to4.6mm(0.13to0.18inch)
•Exhaust—5.8to7.1mm(0.23to0.28inch)
1.Removethe4boltsshowninFigure93fromthe
engine.
g391454
Figure93
1.Removethese4bolts.
2.Rotatetheengineuntilyouseethegapon
cylinder1.
3.Withtherockerarmatthehighestposition,use
afeelergaugetochecktheclearancebetween
thebottomoftheadjustmentscrewandtheend
ofthevalvestem.
4.Whenyoureachthecorrectclearance,usethe
lockingnuttolocktheadjustmentscrew(Figure
94).
g391442
Figure94
1.Adjustmentscrew
3.Clearance
2.Lockingnut
5.Adjusttheintake/exhaustvalvesoncylinder1,
intakevalvesoncylinder2,andexhaustvalve
oncylinder3.
6.Rotatetheengineuntilyouseethegapon
cylinder4.
7.Adjusttheintake/exhaustvalvesoncylinder4,
exhaustvalveoncylinder2,andintakevalve
oncylinder3.
87
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