Synchronizing The Carburetors - Tecumseh V-twin Technician's Handbook

SYNCHRONIZING THE CARBURETORS

The TVT series uses twin carburetors, which MUST be
synchronized if the linkage or carburetor body has been
disturbed. The following step by step procedures must
be followed to synchronize both the throttle and choke.
Inspect all link connectors. If excessively worn or
damaged replace them. To perform this service the
carburetors must be mounted and all linkage must be
connected.
1. Remove the control assembly cover, air cleaner
cover, air cleaner, carburetor deflector and air cleaner
body from the engine. (Illust. 4-9)
2. Remove the link connector bushing clip holding the
throttle link to the #1 cylinder carburetor.
(Illust. 4-10)
#2
4-4
3. Manually rotate the throttle shaft on the number #2
carburetor to the idle position. Next back out the idle
R.P.M. adjustment screw until it no longer contacts
the throttle plate tang. (Illust. 4-11)
4. While holding the number #2 carburetor throttle shaft
in the idle position turn in the idle R.P.M. adjustment
screw to 1/4 turn past first contact. NOTE: It is
critical to find first contact of the R.P.M.
adjustment screw to the throttle plate tang.
5. With the bushing clip still detached, back out the
idle R.P.M. adjustment screw on the #1 carburetor.
Hold the throttle plate in the idle position and turn
4-9
the idle R.P.M. adjustment screw in until first contact
with the tang is made. (Illust. 4-12)
#1
4-10
4-11
#1
CARB
4-12