Carburetor Adjustment - Briggs & Stratton 272147 Repair Manual

4. Tighten casing clamp screw.
Fig. 184
Choke Control Adjustment
1. Place choke control lever on equipment in
position.
2. Loosen control casing clamp screw.
3. Move control casing and wire until choke is
completely closed, Fig. 185.
4. Tighten casing clamp screw.
Fig. 185
Page 72
TM
Vanguard
Section 6 - Final Adjustments & Specifications

CARBURETOR ADJUSTMENT

The VanguardE liquid cooled OHV Twin cylinder
carburetor fuel mixture adjustment procedure is unique.
Perform adjustments exactly in the sequence shown.
Initial Adjustment
1. Turn idle mixture screw for #1 cylinder clockwise
until it just seats. DO NOT FORCE.
2. Then turn screw counter-clockwise 3/4 turn, Fig
186.
3. Repeat for #2 cylinder.
This setting will permit engine to start. Final adjustment
will be made with engine running.
CHOKE
Fig. 186
CAUTION
: Failure to follow these instructions
may result in bearing seizure
1. When engine has been reassembled after any
major repairs, fill engine with a multi-viscosity oil
to the recommended level.
2. Then run engine for 5 minutes under NO belt
tension.
3. Then adjust belt tension to OEM specifications.
Final Adjustment
IMPORTANT
performed with the engine running at 1200 rpm.
Twin-Cylinder OHV Liquid-Cooled Engine
: Idle mixture adjustment must be