Kohler K91 Service Manual page 40

K-SERIES MODELS
KOHLER ADJUSTABLE JET
Low Idle
K91 1 - 1 /2 turns
K1 4 1 1 - 1 /2 turns
K1 6 1 * 1 - 1 /2 turns
K 1 8 1 * 1 - 1 /4 turns
K24 1 2 - 1 / 2 turns
K301 2 - 1 / 2 turns
K32 1 2 - 1 / 2 turns
K34 1 2 - 1 / 2 turns
KT1 7 1 turn
1 turn
KT1 9
K582 1 - 1 /4 turns
* Includes .. New Loo k " Models
Figure 6-20. Prel iminary Low Idle And High Idle Fuel Needle Settings.
Low Idle Fuel Needle Setting:
6 .
th rottle into the " idle " or " slow " position .
Turn the low idle fuel adjusting needle
terclockwise) from the preliminary setting u ntil the
engine speed decreases (rich) . Note the position
of the needle.
Now turn the adjusting needle
engine speed may increase, then it will decrease
as the needle is turned in (lean ) . Note the position
of the need l e .
Set the adjusting needle midway between t h e rich
and lean settings . See Figure 6-2 1 .
7 .
Recheck the low idle speed using a tachome­
ter. Readjust the speed as necessary.
6 . 1 4
PRELI M I NARY S En"INGS
WALBRO
FIXED J ET
High Idle
Low Idle
2 turns
NOT APPL.
3 turns
NOT APPL.
3 turns NOT APPL.
2 turns
2-1 / 2 turns
2 turns
1 - 1 /4 turns
2 turns
1 - 1 /4 turns
3-1 /4 turns
1 - 1 /2 turns
3- 1 /2 turns
1 turn
2- 1 /2 turns
1 -1 /4 turns
2-1 / 2 turns
1 -1 /4 turns
3 turns
NOT APPL.
Place the
out
(coun­
in
(clockwise) . The
WALBRO ADJUSTABLE JET
Low Idle
2 B DETERMD
NOT APPL .
2 B DETERMD
2-1 / 2 turns
1 -3/4 turns
1 -3 /4 turns
2 B DETERMD
2 B DETERMD
1 - 1 /4 turns
1 -1 /4 turns
2 B DETERMD
Adj u st To
M id po i n t
Figure 6-21 . Optimum Low Idle Fuel Setting.
High Idle
2 B DETERMD
NOT APPL.
2 B DETERMD
3 /4 turn
1 - 1 /8 turns
1 -1 /8 turns
2 B DETERMD
2 B DETERMD
1 - 1 /4 turns
1 turn
2 B DETE RMD
L e a n