9-6
CYLINDER HEAD / VALVES
●
Remove the valve spring, valve cotter, retainer, spring
and valve. Using the valve spring compressor.
TOOL : VALVE SPRING COMPRESSOR
●
Remove the valve spring seat and valve stem seal.
Remove carbon deposits from the inside of the
combustion chamber.
INSPECTION
●
Remove gasket marks from the cylinder head gasket.
●
Check the spark plug assembling hole and the valve
seat for cracks.
●
Using a square and a feeler gauge, check the cylinder
head distortion.
SERVICE LIMIT : 0.1 mm
VALVE SPRINGS
●
Measure the free length of the inner and outer valve
springs.
SERVICE LIMIT : 40.00 mm
DISASSEMBLY
●
Loosen the pivot bolt and remove the cam chain
tensioner.
●
Remove the carburetor insulator.
●
Remove the spark plug from the cylinder head.
●
Remove the spark plug cover from the cylinder
head.
PIVOT BOLT
PIVOT BOLT
PIVOT BOLT
PIVOT BOLT
PIVOT BOLT
PIVOT BOLT
PIVOT BOLT
PIVOT BOLT
PIVOT BOLT
PIVOT BOLT
PIVOT BOLT
PIVOT BOLT
PIVOT BOLT
PIVOT BOLT
PIVOT BOLT
PIVOT BOLT
PIVOT BOLT
PIVOT BOLT
CAM CHAIN TENSIONER
CAM CHAIN TENSIONER
CAM CHAIN TENSIONER
CAM CHAIN TENSIONER
CAM CHAIN TENSIONER
CAM CHAIN TENSIONER
CAM CHAIN TENSIONER
CAM CHAIN TENSIONER
CAM CHAIN TENSIONER
CAM CHAIN TENSIONER
CAM CHAIN TENSIONER
CAM CHAIN TENSIONER
CAM CHAIN TENSIONER
CAM CHAIN TENSIONER
CAM CHAIN TENSIONER
CAM CHAIN TENSIONER
CAM CHAIN TENSIONER
CAM CHAIN TENSIONER
·
To prevent the loss of tension, do not compress the
valve spring more than necessary.
·
Mark the disassembled parts so that they can be
reassembled into the original position later.
·
Take precautions not to damage the cylinder head
gasket attachment.
·
Replace the valve spring with new one if the length of
any one is less than the service limit.
Summary of Contents for ROADWIN VJ125 - SERVICE
Page 3: ......
Page 23: ...MEMO...
Page 39: ...MEMO...
Page 47: ...4 0 FUEL SYSTEM...
Page 60: ...MEMO...
Page 61: ...5 0 COOLING SYSTEM...
Page 64: ...MEMO...
Page 65: ...6 0 ENGINE REMOVAL INSTALLATION...
Page 69: ...7 0 CLUTCH GEARSHIFT...
Page 82: ...MEMO...
Page 83: ...8 0 A C GENERATOR STARTER CLUTCH...
Page 93: ...9 0 CYLINDER HEAD VALVES...
Page 109: ...10 0 CYLINDER PISTON...
Page 116: ...MEMO...
Page 117: ...11 0 CRANKCASE TRANSMISSION CRANKSHAFT...
Page 130: ...MEMO...
Page 131: ...12 0 EXTERNAL PARTS...
Page 137: ...13 0 FRONT WHEEL FRONT FORK STEERING...
Page 161: ...14 0 REAR WHEEL REAR SUSPENSION...
Page 174: ...MEMO...
Page 175: ...15 0 HYDRAULIC BRAKE FRONT REAR...
Page 200: ...MEMO...
Page 208: ...MEMO...
Page 216: ...MEMO...
Page 228: ...MEMO...
Page 241: ...MEMO...
Page 249: ...MEMO...
Page 250: ...MEMO...
Page 251: ...SERVICEMANUAL 2004 1 PRINTED 2004 1 PUBLICATION NO C COPY...