18
ENGINE
148
Guideline
Cylinder - drill hole diameter (All 250 models)
Size I
66.400… 66.412 mm (2.61417…
2.61464 in)
Size II
66.412… 66.425 mm (2.61464…
2.61515 in)
Cylinder - drill hole diameter (All 300 models)
Size I
72.000… 72.012 mm (2.83464…
2.83511 in)
Size II
72.012… 72.025 mm (2.83511…
2.83562 in)
Info
The cylinder size
1
is labeled on the right side of the cylinder.
303016-10
–
Using a straightedge and the special tool, check the sealing area of the cylinder
head for distortion.
Feeler gauge (59029041100) (
Cylinder/cylinder head - distortion of
sealing area
≤
0.10 mm (
≤
0.0039 in)
» If the measured value does not meet specifications:
–
Change the cylinder.
18.4.8
Removing the exhaust control
303066-10
–
Remove screw
1
with the bushing and spring.
303067-10
–
Take off gear segment
2
.
303068-10
–
Remove screws
3
.
–
Remove the retaining bracket.
