7-57
Power unit
POWR
3.
Measure the valve stem diameter
b
.
Replace if out of specification.
4.
Measure the valve stem runout.
Checking the valve guide
Before checking the valve guides, make sure
to check the valves.
1.
Measure the valve guide inside diameter
a
.
2.
Calculate the valve guide clearance.
Replace the valve guide if out of
specification.
Replacing the valve guide
After replacing a valve guide, check the valve
seat contact area.
1.
Remove the valve guide
a
from the com-
bustion chamber side using the special
service tool
b
.
2.
Install a new valve guide
c
from the
camshaft side to the specified position
a
using the special service tool
b
.
NOTICE:
Do not reuse a valve guide,
always replace it with a new one.
Valve stem diameter
b
:
Intake:
5.477–5.492 mm (0.2156–0.2162 in)
Exhaust:
5.464–5.479 mm (0.2151–0.2157 in)
Valve stem runout:
Intake and exhaust:
0.01 mm (0.0004 in)
b
a
Valve guide inside diameter
a
:
Intake and exhaust:
5.504–5.522 mm (0.2167–0.2174 in)
Valve guide clearance:
Intake:
0.012–0.045 mm (0.0005–0.0018 in)
Exhaust:
0.025–0.058 mm (0.0010–0.0023 in)
Valve guide remover/installer
b
:
90890-06801
a
b
b
c
a
Содержание F225F
Страница 1: ...SERVICE MANUAL 6CE 28197 3N 11 F L 225F F L 250D F L 300B ...
Страница 4: ......
Страница 54: ...1 31 SPEC Specification MEMO ...
Страница 89: ...2 34 Lower unit 0 1 2 3 4 5 6 7 8 9 10 A MEMO ...
Страница 116: ...3 25 RIG GING Rigging information SET MENU CANCEL a b b c c c D q e E p v w o v C m h A B D D A B D D D F B ...
Страница 218: ...5 55 ELEC Electrical system 2 Connect the Y COP coupler a Y COP input voltage Red R Ground 12 0 V battery voltage R B a ...
Страница 254: ...6 19 FUEL Fuel system 3 Install the blowby hose f 4 Connect the air temperature sensor coupler a f a ...
Страница 263: ...6 28 Canister 0 1 2 3 4 5 6 7 8 9 10 A j k f b ...
Страница 267: ...6 32 Low pressure fuel pump 0 1 2 3 4 5 6 7 8 9 10 A 11 Fasten the vapor gas hoses p and q using the holder r q r p ...
Страница 296: ...7 13 Power unit POWR 21 Install the tube retainer H and then fasten it using the plastic tie I I H H ...
Страница 319: ...7 36 Shift actuator 0 1 2 3 4 5 6 7 8 9 10 A Shift actuator bolts d 19 N m 1 9 kgf m 14 0 ft lb c b d d a ...
Страница 477: ...8 98 Shimming counter rotation model 0 1 2 3 4 5 6 7 8 9 10 A MEMO ...
Страница 493: ...9 14 Upper case and mount 0 1 2 3 4 5 6 7 8 9 10 A Lower mount bracket bolt o 55 N m 5 5 kgf m 40 6 ft lb t u v t v u o ...
Страница 537: ...9 58 PTT cylinder 0 1 2 3 4 5 6 7 8 9 10 A MEMO ...
Страница 562: ...A 1 MEMO ...
Страница 565: ......
Страница 566: ...May 2010 1 ABE E_1 YAMAHA MOTOR CO LTD ...
Страница 576: ...A 13 ...