Inlet Needle - Stihl MS 661 Manual

1
1
1
: Fit the screws (1).
– Check position of metering
diaphragm and gasket, then
tighten down the screws firmly in
a crosswise pattern.
– Push the sleeve onto the stub.
– Reassemble all other parts in the
reverse sequence.

13.5.4 Inlet Needle

– Remove the metering
diaphragm, b 13.5.3
All models
2
1
: Take out the screw (1).
: Take the inlet control lever (2)
with spindle out of the inlet
needle's groove.
The small spring under the inlet
control lever may pop out.
MS 661, MS 661 C-M
1
1
: Pull out the inlet needle (1) and
spring (2), check and replace if
necessary.
If there is an annular
indentation (arrow) on the sealing
cone of the inlet needle, fit a new
inlet needle.
Installing
1
: Fit the inlet needle (1).
: Fit the spring (2) in the bore.
3
2
2
: Position the inlet control lever (1)
with spindle (2) on the spring
(arrow) first, then slide the inlet
control lever's clevis into the
groove in the inlet needle (3).
Make sure the spring locates on the
control lever's nipple.
– Press the inlet control lever down
and secure it with the screw.
– Check that the inlet control lever
moves freely.
– Install the metering diaphragm,
b 13.5.3
2
1
103