'61HN252' by American Honda Motor Co. - Page 179 of 540
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3/9/2008 10:51 PM
[2005-2008] [TRX500 FA/FGA]
CYLINDER HEAD/VALVE/CAMSHAFT
Turn the camshaft holder to check the bearing.
The bearing should turn smoothly and quietly.
Replace the camshaft assembly if the bearing does
not turn smoothly and quietly.
Push
Check the decompressor cam operation.
Press on the decompressor cam as shown.
As you press on one side, the decompressor cam
should lock above the base of the exhaust cam lobe.
As you press on other side, the decompressor cam
lobe extend below the base of the exhaust cam
lobe.
Push
DECOMPRESSOR CAM
CAMSHAFT INSTALLATION
Install camshaft holder B onto the camshaft assem-
DOWEL PINS
bly.
Install the dowel pins if they were removed.
CAMSHAFT HOLDER B
Remove the timing hole cap
(page 3-10).
INDEX MARK
Rotate the crankshaft using the recoil starter knob
and align the "T" mark on the flywheel with the
index mark on the rear crankcase cover.
"T" MARK
Lubricate the camshaft bearings and cam chain with
CAMSHAFT ASSEMBLY
oil.
CAM CHAIN
Install the camshaft holder plate onto the camshaft
holders.
Align the timing mark (index line) on the cam
sprocket with the cylinder top surface, and install
the cam chain onto the cam sprocket.
Locate the dowel pins into the holes in the cylinder.
Make sure that the timing mark lines up with the cyl-
inder top surface.
HOLDER PLATE
TIMING MARK
8-17
