Adjusting The Throttle Cable; 4-Mix Engine - Stihl HL 90 Instruction Manual

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3 2
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N Loosen the clamp screws (1).
N
Push the gearbox (2) onto the drive
tube (3) – turn it back and forth at
the same time until the end of the
drive tube is no longer visible in the
slot (arrow) – then push fully home
as far as stop.
N Line up the gearbox on the drive
tube so that the machine support on
the engine points down and the
blades are horizontal.
N Tighten down the clamp screws (1)
firmly.
HL 90 K
Adjusting the Throttle
Cable
A properly adjusted throttle cable is the
precondition for correct operation in the
full throttle, starting throttle and idle
positions.
N Adjust the throttle cable only when
the unit is completely and properly
assembled.
N Use a suitable tool to push the slide
to the end of the slot (see
illustration).
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2
N Press down the throttle trigger
lockout (1) and squeeze the throttle
trigger (2) (full throttle) – this sets
the throttle cable correctly.

4-MIX Engine

The STIHL 4-MIX engine features
mixture lubrication and must be run on a
fuel mixture of gasoline and engine oil.
It operates otherwise on the 4-stroke
principle.
English
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