Briggs & Stratton 350000 - Manual (Page 15)

Document: - page 15 (Black)
Screen angle and frequency: 45.0000, 150.0000
15
ADJUSTMENTS
CARBURETOR ADJUSTMENT
WARNING
The manufacturer of the equipment on which this
engine is installed specifies top speed at which the
engine will be operated. DO NOT EXCEED this speed.
Differences in fuel, temperature, altitude or load may require
minor carburetor adjustment. Air cleaner and its cover must
be assembled to carburetor before starting engine.
The carburetor on this engine is low emission. It is
equipped with an idle mixture valve with a limiter (see
inset), which allows some adjustment, and an idle speed
adjustment screw. DO NOT remove limiter caps. DO NOT
force beyond limits.
CARBURETOR
THROTTLE
LEVER
CYL
# 1
IDLE SPEED
SCREW
IDLE SPEED
SCREW
IDLE MIXTURE
VALVE
LIMITER
CAP
CARBURETOR
THROTTLE
LEVER
TO ADJUST CARBURETOR
[1] Start engine and warm up approximately 5 minutes
before adjusting.
[2] With engine running, place throttle control in SLOW.
[3] Rotate carburetor throttle lever against the idle
speed screw and hold it.
[4] Turn idle speed screw to obtain 1400 rpm (1200 rpm
on two barrel carburetor).
[5] While still holding carburetor throttle lever against
idle speed screw, turn idle mixture valve with limiter
cap. DO NOT remove limiter cap. DO NOT force
beyond limits.
[6] On two barrel carburetor: set cylinder #1 idle mixture
valve midway between limits. Then set cylinder #2
idle mixture valve midway between limits, while
holding carburetor throttle lever against idle speed
screw.
IDLE
MIXTURE
VALVES
CYL
# 2
Single barrel carburetor
Two barrel carburetor
[1] Readjust the idle speed to 1200 rpm, if governed idle
spring is red, or 900 rpm, if governed idle spring is white.
[2] Release carburetor throttle lever. Move throttle
control to FAST position. Engine should accelerate
smoothly. If it does not, readjust idle mixture valves
slightly counterclockwise.
GOVERNED IDLE SPRING
GOVERNED IDLE SPRING
(RED OR WHITE)
EXHAUST
MANIFOLD
Note: Engines operated at about 3000 to 5000 feet (900 to
1500 meters) above sea level may require a high altitude
carburetor main jet. If erratic performance is observed,
contact a Briggs & Stratton Authorized Service Dealer for
cost to install/purchase a high altitude carburetor main jet.
Add
sa
les
ta
x if
you
liv
e in
any
of
the
follow
ing
stat
es
:
**A
L
5%
, CT 6
%
, FL
6
.5
%
, G
A
4%
, K
Y
6%
, MI 6
%
, MN 6
%
,
M
O
4.225%,
N
Y
8.5%,
O
H
5%,
T
N
6%,
T
X
6.25%,
W
A
6.5%,
W
I 5
%
Payment Method:
Fill in both s
ides
of this
or
der
for
m
c
a
re
fully
j
Check or money order enclosed payable to Briggs & Stratton Corporation
in the amount of $_______
(U.S. Dollars, please)
j
Please charge my
j
MasterCard
j
VISA
CREDIT CARD NUMBER
SIGNA
TURE (REQUIRED FOR CREDIT CARD ORDERS)
EXPIRA
TION DA
TE
Parts List Shipping & Handling **Add State Sales T
a
x
To
ta
l
$2.00 $1.50
T
o
purchase a complete list of Genuine Briggs & Stratton Parts for your engine, fill in
both sides of this order form carefully
.
W
e
cannot fill your order without the correct
Engine Model/T
ype/Code.
Allow 3 to 4 weeks for delivery
.