Service Points; Cylinder Inspection - Yamaha WaveRunner XLT800 Wartungshandbuch

POWR
CYLINDERS

SERVICE POINTS

Cylinder inspection

1. Eliminate:
Carbon deposits
G
(with a rounded scraper 1)
2. Inspect:
G Cylinder water jacket
Corrosion/mineral deposits → Clean
or replace.
Cylinder inner surface
G
Score marks → Replace.
3. Measure:
Cylinder bore "D"
G
(with a cylinder gauge)
Out of specification → Replace.
NOTE:
Measure the cylinder bore in parallel and at
a right angle to the crankshaft. Then, aver-
age the measurements.
Cylinder 80.018 mm
bore "D"
3.1503 in)
Taper "T"
Out of
round "R"
D = Maximum (D
T = (Maximum D
or D )
6
R = (Maximum D
D , D or D
2 4
5-20
Standard Limit
80.000–
Original cylinder
bore + 0.04 mm
(3.1496–
(0.0016 in)
0.08 mm
—
(0.003 in)
0.05 mm
—
(0.002 in)
–D )
1 6
or D ) – (Maximum D
1 2
, D or D ) – (Minimum
1 3 5
)
6
E
5