Synchronizing The Carburetors - Yamaha BT1100 2002 Service Manual

SYNCHRONIZING THE CARBURETORS

EASB0002
SYNCHRONIZING THE CARBURETORS
NOTE:
Prior to synchronizing the carburetors, the valve
clearance and the engine idling speed should be
properly adjusted and the ignition timing should
be checked.
1. Start the engine and let it warm up for several
2. Stand the motorcycle on a level surface.
NOTE:
Place the motorcycle on a suitable stand.
3. Remove:
4. Lift:
NOTE:
Do not disconnect the fuel hoses.
5. Remove:
1
6. Remove:
7. Remove:
8. Install:
3-7
minutes, then stop the engine.
• seat
• fuel tank
Refer to "SEAT, SIDE COVERS AND FUEL
TANK".
• carburator side covers 4
• A.I.S. hose 1
Connect vacuum hose 3 to the A.I.S. sys-
tem hose connection on front cylinder n. #2.
Start the engine and fold up the fuel cock
vacuum hose 2 on rear cylinder n. #1. Fix
the fuel cock vacuum hose by means of a
plastic clamp to keep the fuel cock open.
• fuel cock vacuum hose 2
Connect the other vacuum hose 3 to the
fuel cock vacuum hose on rear cylinder
n. #1.
• engine tachometer 5
(to the spark plug lead of rear cylinder #1)
Vacuum gauge:
90890-03094
Engine tachometer:
90890-03113
INSP
ADJ