Husqvarna K 770 Manuel D'utilisation page 21

lower with this fuel, which keeps the components of
the engine more clean.
To mix gasoline and two-stroke oil
Gasoline, liter
5
10
15
20
US gallon
1
2 1/2
5
CAUTION: Small errors can influence the
ratio of the mixture drastically when you mix
small quantities of fuel. Measure the quantity
of oil carefully and make sure that you get
the correct mixture.
1. Fill half the quantity of gasoline in a clean container
for fuel.
2. Add the full quantity of oil.
3. Shake the fuel mixture.
4. Add the remaining quantity of gasoline to the
container.
5. Carefully shake the fuel mixture.
CAUTION: Do not mix fuel for more than 1
month at a time.
1447 - 001 - 16.04.2020
OilGuard
Note: Applicable only to K 770 installed with OilGuard
(optional) and filled with a mixture of gasoline and
Husqvarna two-stroke oil.
Two-stroke oil,
liter
•
2% (50:1)
•
0.10
0.20
0.30
0.40
•
US fl. oz.
2 ½
OilGuard oil
6 ½
Use Husqvarna OilGuard oil when you use the OilGuard
12 ⅞
system. OilGuard oil has a special color that is
necessary for the OilGuard system to work correctly.
To disengage the OilGuard
Note: A broken indicator pin shows that the OilGuard
system is disengaged. You cannot use a broken
indicator pin again to engage the OilGuard system.
The OilGuard plug (A) and a blue indicator pin (B) are
factory installed in the tank. The OilGuard lid (C) comes
as a spare part. If you do not have access to the
OilGuard oil, disengage the OilGuard system.
1. Remove the OilGuard plug (A) with a screwdriver.
2. Remove the blue indicator pin (B).
3. Install the OilGuard lid (C) in the tank.
To engage the OilGuard system
Note: You cannot use a broken indicator pin to engage
the OilGuard system again. You can get a new indicator
pin as a spare part. The spare part of the indicator pin is
grey to show that the OilGuard system has been
disengaged after the product left the factory.
1. Remove the OilGuard lid from the tank. Refer to
2. Attach a grey indicator pin to the OilGuard plug.
OilGuard is a built-in system that senses an incorrect
fuel mixture.
When the product operates, a detector reads the fuel
mixture during 10 seconds. If the correct mixture is
used, the product operates at the correct speed. If
the incorrect mixture is used, the product decreases
the engine speed to 3800 rpm to prevent engine
failure.
To make the product operate at the correct speed,
drain the incorrect fuel mixture. See
and two-stroke oil on page 21 . Fill the product with
the correct fuel mixture.
B
disengage the OilGuard on page 21
To mix gasoline
A
C
To
21