Stihl 064 - Page 82

STIHL 064, 066 82
Top:
Removing fixed jet (064)
1 = Retaining ring
2 = Fixed jet
Top: Top: 3 = O-ring
Damaged inlet needle Carburetor adjusting screws
Bottom:
Bottom: Bottom: 1 = Semi-fixed jet
Pressin
g
out valve
j
et Pressin
g
out fixed
j
et
(
066
)
2 = Sealin
g
plu
g
If there is an annular indentation - Remove the carburetor adjusting Caution: The sealing plug is de
on the sealing cone of the inlet screws. stroyed during removal. It should,
needle, it will be necessary to re- therefore, only be removed if a re
place the inlet needle because it - Use a 3 mm (approx. 1/8") dia. placement is available.
will no longer seal properly. This is drift to press the fixed jet of the
indicated by constant flooding of 066 out of its seat wash it in Wash the carburetor body and all
the carburetor even though the white spirit. serviceable parts in fresh white
needle is clean. spirit and blow clear with com
- On the 064, use a scriber to pry pressed air, paying special atten-
- Use a 4 mm (approx. 5/32") dia. out the retaining ring. Remove tion to the bores and ports.
drift to press the valve jet out of the fixed jet and O-ring.
its seat and wash it in white spirit. The carburetor in the 066 is
- Pry the sealing plug out of the equipped with a semi-fixed jet
metering chamber. which cannot be removed. Blow it
clear with compressed air.