Fuel - Stihl SP 451 Instruction Manual

English
SW 27
N Hold the pushrod steady with the
27mm wrench and tighten down the
shaft firmly.
Removing the Shaft
The shaft can be removed again to save
space when transporting the machine.
See chapter on "Transporting the
Machine".
Attaching the Harness
N Attach the harness to the machine
and put it on – see "Putting on the
Harness".
8
Adjusting the Throttle
SW 34 Cable
A properly adjusted throttle cable is the
precondition for correct operation in the
starting throttle, idle and full throttle
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).
N Press down the throttle trigger
lockout (1) and squeeze the throttle
trigger (2) (full throttle) – this sets
the throttle cable correctly.
1
2

Fuel

Your engine requires a mixture of
gasoline and engine oil.
For health reasons, avoid direct
skin contact with gasoline and
avoid inhaling gasoline vapor.
STIHL MotoMix
STIHL recommends the use of STIHL
MotoMix. This ready-to-use fuel mix
contains no benzol or lead, has a high
octane rating and ensures that you
always use the right mix ratio.
STIHL MotoMix is specially formulated
for use in STIHL engines and
guarantees a long engine life.
MotoMix is not available in all markets.
Mixing Fuel
Unsuitable fuels or lubricants or
mix ratios other than those
specified may result in serious
damage to the engine. Poor
quality gasoline or engine oil may
damage the engine, sealing rings,
hoses and the fuel tank.
Gasoline
Use only high-quality brand-name
gasoline with a minimum octane rating
of 90 – leaded or unleaded.
If your machine is equipped with a
catalytic converter, you must use
unleaded gasoline.
SP 451, SP 481