'61HN252' by American Honda Motor Co. - Page 194 of 540
http://services.honda.com/ServiceManual/SVC_MNL/61HN253/61HN2...
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3/9/2008 10:52 PM
[2005-2008] [TRX500 FA/FGA]
CYLINDER/PISTON
Insert each piston ring into the bottom of the cylin-
der squarely using the piston.
Measure the ring end gap.
SERVICE LIMITS: Top: 0.5 mm (0.02 in)
Second:0.6 mm (0.02 in)
Measure the piston pin O.D. 90° to the piston pin
hole and at point 15 mm (0.6 in) from bottom of the
piston skirt.
SERVICE LIMIT: 91.90 mm (3.618 in)
Compare this measurement against the maximum
cylinder I.D. measurement and calculate the piston-
15 mm (0.6 in)
to-cylinder clearance
(page 9-7).
Measure piston pin hole. Take the maximum read-
ing to determine the I.D.
SERVICE LIMIT: 20.04 mm (0.789 in)
Measure the piston pin O.D. at three points.
SERVICE LIMIT: 19.96 mm (0.786 in)
Calculate the piston-to-piston pin clearance.
SERVICE LIMIT: 0.08 mm (0.003 in)
CONNECTING ROD
Measure the connecting rod small end I.D.
SERVICE LIMIT: 20.07mm (0.790 in)
Calculate the connecting rod-to-piston pin clear-
ance.
SERVICE LIMIT: 0.10 mm (0.004 in)
9-8
