STIHL TS 460 71
10.6 Carburetor Adjustment
Top:
Properly positioned torsion spring
Bottom:
1 = Ring
2 = Gasket
The ignition system is equipped
with an electronic maximum
engine speed limiter. Unlike
machines equipped with ordinary
ignition systems, the maximum
engine speed cannot be made to
exceed a predetermined
maximum r. p.m. by adjusting the
carburetor.
Likewise, the machine cannot be
adjusted by hand for "maximum
performance". Extremely lean
carburetor settings yield neither
higher rpms nor increased
power, but instead increase the
risk of engine damage.
The carburetor has a standard
setting when it leaves the factory.
This is the optimum setting of the
high speed adjusting screw for the
barometric pressure and climatic
conditions at the factory (300m
above sea level). It ensures
maximum engine performance,
fuel efficiency and the highest
possible reliability.
Standard setting
If the carburetor has to be adjusted
from scratch, first carry out the
standard setting to obtain a
starting point for the fine tuning.
- Slide ring on with open side
facing gasket.
- Press circlip into groove of
choke shaft.
- Fit choke shutter with round
notch facing pump-side end
cover and other notches
facing outward.
- Screw in mounting screw
using Loctite, see 11.2.,
and tighten.
- Fit new gasket in choke
lever.
- Following insertion of choke
shaft, make sure that torsion
springs are positioned
properly.
- Slide new gasket over choke
shaft.
Fitting the choke shutter
1 = Round notch
2 = Notches
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