60C5D11
4-20
1
2
3
4
5
6
7
8
9
Synchronizing the carburetors
1.
Start the engine and warm it up for 5 min-
utes to check the stability of the engine.
2.
Attach the special service tool to high-
tension cord #1
1
.
3.
Remove all of the plugs
2
and attach the
special service tool and adapters to the
carburetor assembly as shown.
4.
Adjust the idle speed to 1,000 r/min by
turning the throttle stop screw
5
on car-
buretor #4 in direction
a
or
b
.
NOTE:
• To increase idle speed, turn the throttle
stop screw in direction
a
.
• To decrease idle speed, turn the throttle
stop screw in direction
b
.
5.
Measure the vacuum pressure of carbu-
retor #4.
Digital tachometer: 90890-06760
Vacuum gauge: 90890-03159
S60C4290
#1
#2
#3
#4
S60C4320
Vacuum gauge (digital)
(commercially obtainable)
3
:
Vacuum gauge (4 analog meters)
(commercially obtainable)
4
:
Vacuum gauge adaptor
(commercially obtainable)
5
:
#1
#2
#3
#4
S60C4330
S60C4340
Carburetor
Summary of Contents for F100B
Page 1: ...SERVICE MANUAL 60C 28197 5D 11 290429 F100B F100C ...
Page 52: ...SPEC Specifications 2 17 60C5D11 MEMO ...
Page 162: ...LOWR Lower unit 6 15 60C5D11 Drive shaft and lower case F100B 6 ...
Page 190: ...LOWR Lower unit 6 43 60C5D11 Drive shaft and lower case F100C 6 ...
Page 200: ...LOWR Lower unit 6 53 60C5D11 Shimming F100C 6 ...
Page 209: ...60C5D11 7 2 1 2 3 4 5 6 7 8 9 MEMO Special service tools ...
Page 210: ...BRKT Bracket unit 7 3 60C5D11 Tiller handle 7 ...
Page 212: ...BRKT Bracket unit 7 5 60C5D11 ...
Page 214: ...BRKT Bracket unit 7 7 60C5D11 ...
Page 244: ...BRKT Bracket unit 7 37 60C5D11 Gear pump F100B 7 ...
Page 341: ......
Page 343: ......
Page 344: ...YAMAHA MOTOR CO LTD Printed in the Netherlands Jun 2001 0 5 1 CR F100BET F100CET E ...