Removal
| Note do not expand the piston ring excessively since it is apt to be broken down. |

Installation
Note
|
After placing the spacer, fit the two side rails (2).

| Caution when installing the spacer, be careful not to allow its two ends to overlap in the groove. |

|
| Note 1st ring (4) and 2nd ring (3) differ in shape. |

| Note face the side with the stamped mark upward when assembling. |


|
Cylinder inspection
Piston and piston ring inspectionCylinder head related parts inspection
Refer to “cylinder head disassembly and assembly” .
Cylinder head distortion
Decarbonize the combustion chambers.
Check the gasket surface of the cylinder head for
distortion. Use a straightedge and thickness gauge.
Take clearance readings at several places. If
readings exceed the ...
Crankcase breather (pcv) hose inspection
Inspect the crankcase breather (pcv) hose in the
following procedures:
lift and support the fuel tank with the prop stay.
Refer to “fuel tank removal and installation” in section 1g .
Inspect the crankcase breather (pcv) hose (1) for
wear and damage.
If it is worn or damaged ...
Stp sensor adjustment
Adjust the stp sensor in the following procedures:
remove the air cleaner box cover. Refer to “air cleaner element removal
and installation” in section 1d .
Disconnect the stva lead wire coupler (1).
Insert the needle pointed probes to the stp sensor
coupler (between y/w a ...