Inspect Breather Tube(S) - Briggs & Stratton Twin Cylinder L-Head Repair Manual

Inspect Breather Tube(s)

Breather tube(s) should be checked for cracks, holes
or hardening. Replace, if damaged. Breather tube(s)
on current (Twin II) horizontal crankshaft models can
be identified by a molded flat area for remote control
wire clearance, Fig. 13.
Assemble breather tubes as shown in Fig. 14.
NOTE: On horizontal crankshaft engines, breath-
er tube installation will be easier if breather
tube(s) are assembled to air cleaner base
first.
Breather tubes on Pre-Twin II horizontal crankshaft
models are marked "Air Cleaner Side." Assemble as
shown in Fig. 15.
NOTE: Early production breather tubes are not
marked. If the breather tubes become
kinked when lower air cleaner body is
installed, tubes are upside down.
Vertical crankshaft breather tube installation shown in,
Fig. 16.
6
8
CONTROL WIRE
CLEARANCE
Fig. 13 – Current Breather Tube(s)
(Type Nos. 1100 & Above)
CONTROL WIRE
CLEARANCE
NO. 1 CYLINDER
Fig. 14 – Breather Tube Installation (Current)
AIR
CLEANER
SIDE
BREATHER
TUBE
Fig. 15 – Pre Twin II Horizontal Crankshaft
(Type Nos. Below 1100)
Fig. 16 – Breather Tube Installation
Vertical Crankshaft
BREATHER
TUBE