272144 Vanguard Twin Cylinder OHV BRIGGS & STRATTON.pdf

21. Position bowl drain as shown.
22. Torque screw or solenoid to 45 in. lbs. (5 Nm).
Fig. 37
18. Install idle jet (18), plug (19) and gasket (20),
Fig. 38.
Fig. 40
Mikuni Carburetor
Models 290700, 303700, 350700 (Before
951001xx)
Check Throttle, Choke Shaft and Body For Wear
NOTE: The measurement in Step 1 is taken with the
carburetor off of the intake manifold.
Fig. 38
19. Install idle mixture screw (21) and spring (22),
Fig. 39.
1. Lay carburetor on flat surface. Use a feeler
gauge (1) to check throttle and choke shaft
clearance as shown in Fig. 41.
NOTE: DO NOT tighten screw. DO NOT install the
limiter cap at this time.
Fig. 41
Throttle shaft and choke shaft clearance must not
exceed 0.010” (0.25 mm).
Fig. 39
20. Install bowl gasket (24), float bowl (25), washer
(26) and screw (27) or anti-afterfire solenoid
(23), if equipped, Fig. 40.
NOTE: The inspection in Step 2 is performed after
the carburetor has been disassembled.
2. Inspect throttle shaft and choke shaft for wear
(2), Fig. 42.
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