86
MS 171, MS 181, MS 211
:
Inspect the tip (arrow) for
damage or wear and replace the
screw if necessary.
– Screw home high speed screw
H
as far as stop.
– Carry out basic setting,
b
14.5.1
14.5
Adjusting the Carburetor
14.5.1 Basic Setting
The basic setting is necessary only
if the high speed screw
H
or low
speed screw
L
has to be replaced
or after cleaning and adjusting the
carburetor from scratch.
– Remove the limiter cap from the
high speed screw,
b
14.4.9
It is necessary to carry out the basic
setting after removing the limiter
cap.
533RA370 TG
:
Screw down the high speed
screw
H
(1)
clockwise onto its
seat.
:
With the high speed
screw
H
(1) against its seat,
unscrew it
one full turn
counterclockwise
– this is the basic setting.
:
Screw down the low speed screw
L
(2) clockwise onto its seat.
:
With the low speed screw
L
(2)
against its seat, unscrew it
one
full turn
counterclockwise
– this is the basic setting.
Always install a new limiter cap.
First position it so that its lug is
below the stop (arrow) and then
press it onto the high speed screw.
:
Press the limiter cap (1) onto the
high speed screw
H
.
1
533RA371 TG
2
533RA372 TG
1
:
Do not push on the limiter cap (1)
as far as stop against the
carburetor body (2) because it
will be damaged. Maintain a
minimum clearance of “a” = 1 mm
(arrow).
The high speed screw
H
now has a
limited range. The standard setting
is obtained by turning the high
speed screw
H
counterclockwise
until it engages in position.
533RA220 TG
a
1
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