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Valve Clearance
(cont’d)
Servicing Your Honda 81
1. Set the piston at TDC on the compression
stroke (page 80).
2. Measure the intake valve clearances by
inserting a feeler gauge (1) between the intake
rocker arms (2) and camshaft cam lobes (3).
Be careful not to damage the intake rocker arms.
Valve Clearance:
3. Measure the exhaust valve clearances by
inserting a feeler gauge (1) between the
exhaust rocker arms (4) and shims (5).
Valve Clearance:
If intake valve clearance and exhaust valve
clearance need adjustment, see Camshaft Removal
(this page) and select the correct shim for each
valve.
1. Make sure the piston is at TDC on the
compression stroke (page 80).
Record the intake valve and exhaust valve
clearances (this page).
2. Remove the cam chain tensioner lifter cover
bolt (1) and sealing washer (2).
Valve Clearance Inspection
(1) feeler gauge (3) camshaft cam lobes
(2) intake rocker arms
IN: 0.005 ± 0.001 in (0.13 ± 0.03 mm)
(3)
(1)
(2)
(3) (1)
(3)
(2)
(1) feeler gauge (5) valve shims
(4) exhaust rocker arms
EX: 0.011 ± 0.001 in (0.28 ± 0.03 mm)
(5)
(1)
(4)
(5)
(1)
(4)
(5)
(4)
Camshaft Removal
(1) cam chain tensioner lifter cover bolt
(2) sealing washer
(1)
(2)
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