Install Breathers - Horizontal Crankshaft Models Before Code 91080000 - Briggs & Stratton Twin Cylinder L-Head Repair Manual

Install Breathers – Horizontal Crankshaft
Models Before Code 91080000
Install new dipstick tube seal in cylinder before
installing air guide.
1. Install gasket between valve chamber and breath-
er, #1 side.
2. Install one gasket between the valve chamber and
air guide, #2 side.
3. Install second gasket between air guide and
breather, #2 side.
a. Torque screws to 25 in. lbs. (3.0 Nm).
4. Assemble breather tubes to breathers
GENERAL ASSEMBLY
1. Route the spark plug leads and ground and primary
(breaker point engines) wire through the notch in air
guide, # 1 cylinder side, Fig. 25.
2. Assemble linkage to governor lever and throttle
lever.
3. Install intake manifold and carburetor assembly.
a. Torque screws to 90 in. lbs. (10.0 Nm).
4. Install blower housing.
a. Torque screws to 90 in. lbs. (10.0 Nm).
b. Vertical Crankshaft: Install oil fill tube with new
seal.
5. Install fuel pump pulse line.
6. Install air cleaner base with new gasket
a. Torque screws to 25 in. lbs. (3.0 Nm).
7. Assemble air cleaner.
IMPORTANT:
Install breather tubes on filtered side of air cleaner element, Fig. 26. If breather tubes are incor-
rectly installed, premature engine wear will result.
1 breather tube hole
Horizontal Crankshaft
After Code 91080000
10
GASKETS (2)
AIR
GUIDE
Fig. 24 – Install Breathers And Air Guide
IGNITION CABLE ROUTING
SPARK PLUG LEADS
AND GROUND WIRE
GROUND
WIRE
SPARK PLUG
2 breather tube holes
Horizontal Crankshaft
Before Code 91080000
Fig. 26 – Breather Tube Installation
13
CYLINDER
NO. 2
LEADS
Fig. 25 – Wire Routing
Vertical Crankshaft
GASKET
CYLINDER
NO. 1
NOTCH IN
AIR GUIDE