Suzuki RM-Z250 - Cam Chain Tension Adjuster Inspection; Cam Chain Tensioner Inspection

CYLINDER HEAD, CYLINDER AND PISTON 6-11
• If the camshaft journal oil clearance measured exceeds the
limit, measure the inside diameter of the camshaft journal
holder and outside diameter of the camshaft journal.
• Replace the camshaft or the cylinder head depending upon
which one exceeds the specification.
 Camshaft journal holder I.D.:
Standard (IN. & EX.): 22.003 – 22.025 mm
(0.8663 – 0.8671 in)
 09900-20602: Dial gauge
09900-22403: Small bore gauge (18 – 35 mm)
 Camshaft journal O.D.:
Standard (IN. & EX.): 21.959 – 21.980 mm
(0.8645 – 0.8654 in)
 09900-20205: Micrometer (0 – 25 mm)
CAM CHAIN TENSION ADJUSTER
INSPECTION
• Remove the cam chain tension adjuster cap bolt and spring.
• Check that the push rod slides smoothly when releasing stop-
per 1.
• If it does not slide smoothly, replace the cam chain tension
adjuster with a new one.
CAM CHAIN No.1 GUIDE, CAM CHAIN No.2
GUIDE AND CAM CHAIN TENSIONER
INSPECTION
• Inspect the contacting surface of the cam chain No.1 guide
1, can chain tensioner 2 and cam chain No.2 guide 3.
• If it is worn or damaged, replace it with a new one.