Honda HRN216 Series Manual page 146

HRN216
CAMSHAFT DECOMPRESSOR
Carefully inspect the decompressor weight position and confirm
that it is fully retracted. The retracted position is where the
decompressor pin is on the side of the slot closest to the camshaft
bore.
If the weight is fully retracted, operate the decompressor by using a
pick tool to move the decompressor weight to the opposite end of
the slot, and then gently releasing. Do not push on the
decompressor pin with the pick tool. Only push on the
decompressor weight. It is normal for the decompressor to lock up
when pushing on the pin and not the weight.
Repeat several times. If the weight fails to completely return on its
own at any time (by spring force), replace the camshaft and
properly set the cam timing.
ROCKER ARM I.D.
Measure the rocker arm I.D.
STANDARD: 6.000 – 6.030 mm (0.2362 – 0.2374 in)
SERVICE LIMIT:
If the measurement is more than the service limit, replace the
rocker arm.
ROCKER ARM SHAFT BEARING I.D.
Measure the rocker arm shaft bearing I.D.
STANDARD: 6.000 – 6.018 mm (0.2362 – 0.2369 in)
SERVICE LIMIT:
If the measurement is more than the service limit, replace the
cylinder.
6.043 mm (0.2379 in)
6.043 mm (0.2379 in)
CAMSHAFT/CRANKSHAFT/ PISTON/CYLINDER
RETRACTED
POSITION
DECOMPRESSOR
PIN
BORE
DECOMPRESSOR
WEIGHT
ENGAGED
POSITION
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