Yamaha SXV70SJ Supplementary Service Manual - Eng
Other manuals for SXV70SJ:
Owner's Manual
of
576
5-9
ENG
CYLINDER HEAD AND CYLINDER
INSPECTION
1. Eliminate:
•
Carbon deposits
(from the combustion chamber)
Use the rounded scraper
1
.
CAUTION:
Do not use a sharp instrument. Avoid damaging
or scratching the surface.
2. Inspect:
•
Cylinder head water jacket
Crust of minerals/rust
→
Clean.
3. Measure:
•
Cylinder head warpage
Out of specification
→
Resurface.
Warpage limit:
0.03 mm (0.0012 in)
•
Straight edge
1
•
Thickness gauge
2
4. Eliminate:
•
Carbon deposits
(from the cylinders)
Use the rounded scraper
1
.
CAUTION:
Do not use a sharp instrument. Avoid damaging
or scratching the surface.
5. Eliminate:
•
Carbon deposits
(from the piston crown and ring grooves)
6. Inspect:
•
Piston crown
Burrs/nicks/damage
→
Replace.
SCH5120
SCH5130
SCH5140
SCH5150