Cylinder/Piston Contents; Cylinder/Piston Service Information; Cylinder/Piston Troubleshooting - Honda Motorcycle Service Manual

SERVICE INFORMATION
TROUBLESHOOTING
SYSTEM DESCRIPTION
10-1 CYLINDER 10-5
10-1 PISTONIPISTON RING 10-6
10-2 CYLINDER INSTALLATION 10-10
SERVICE INFORMATION
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Be careful not to damage the mating surfaces by using a screwdriver when disassembling the cylinder. Do not strike the
cylinder too hard during disassembly, even with a rubber or plastic mallet, to prevent the possibility of damage to the
cylinder fins.
0
Take care not to damage the cylinder wall and piston.
0
With multi-cylinder engines, store the pistons, piston rings and piston pins in the same order they were installed so they
can be reinstalled in the original positions.
TROUBLESHOOTING
Four stroke engines: If performance is poor at low speeds, check for white smoke in the crankcase breather tube. If the tube is
smokey, check for a seized piston ring.
NOTE
Refer to section 3 for cylinder compression and leak-down test procedures.
Compression too low, hard starting or poor performance at
low speed
.
Leaking cylinder head gasket
.
Loose spark plug
.
Worn, stuck or broken piston rings
Worn or damaged cylinder and piston
Compression too high. overheating or knocking
Excessive carbon build-up in cylinder head or on top of
piston
Excessive smoke
-
Worn cylinder, piston, or piston rings
Improper installation of piston rings
.
Scored or scratched piston or cylinder wall
Abnormal noise lpiston)
.
Worn cylinder and piston
-
Worn piston pin or piston pin hole
.
Worn connecting rod small end bearing
Date of Issue : March, 1995
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HONDA MOTOR CO.,LTD.
10-1