Husqvarna 323P4 User Manual

Page of 32
18 – 
English
FUEL HANDLING
Fuel
CAUTION! The machine is equipped with a two-stroke engine 
and must always been run using a mixture of gasoline and 
two-stroke engine oil. It is important to accurately measure 
the amount of oil to be mixed to ensure that the correct 
mixture is obtained. When mixing small amounts of fuel, even 
small inaccuracies can drastically affect the ratio of the 
mixture.
Gasoline
CAUTION!
Always use high grade unleaded oil mixed gasoline (minimum 
87 RON). If your machine is equipped with a catalytic 
converter (see chapter on Technical data) always use a good 
quality unleaded petrol/oil mixture. Leaded petrol will destroy 
the catalytic converter and it will no longer serve its purpose.
This engine is certified to operate on unleaded 
gasoline.
The lowest recommended octane rating is 87. If you run 
the engine on lower octane rating than 87 so-called 
“knocking“ can occur. This leads to an increased engine 
temperature, which can result in a serious engine 
breakdown.
When working at continuous high revs a higher octane 
rating is recommended.
Two-stroke oil
For best results and performance use HUSQVARNA two-
stroke oil, which is specially formulated for our two-stroke 
engines. Mixture 1:50 (2%).
Never use two-stroke oil intended for water-cooled 
outboard engines, sometimes referred to as outboard oil.
Never use oil intended for four-stroke engines.
Mixing
Always mix the gasoline and oil in a clean container 
intended for fuel.
Always start by filling half the amount of the gasoline to be 
used. Then add the entire amount of oil. Mix (shake) the 
fuel mixture. Add the remaining amount of gasoline.
Mix (shake) the fuel mixture thoroughly before filling the 
machine’s fuel tank.
Do not mix more than one month’s supply of fuel at a time.
If the machine is not used for some time the fuel tank 
should be emptied and cleaned.
This engine is certified to operate on unleaded 
gasoline.
Fuelling
Move the machine at least 3 m from the refuelling point 
before starting it.
Clean the area around the fuel cap. Contamination in the 
tank can cause operating problems.
Ensure that the fuel is well mixed by shaking the container 
before filling the tank.
!
WARNING! Always ensure there is adequate 
ventilation when handling fuel.
Gasoline, litre
Two-stroke oil, litre
2% (1:50)
5
0,10
10
0,20
15
0,30
20
0,40
US gallon
US fl. oz.
1
2 1/2
2 1/2
6 1/2
5
12 7/8
!
WARNING! The catalytic converter muffler 
gets very hot during and after use. This also 
applies during idling. Be aware of the fire 
hazard, especially when working near 
flammable substances and/or vapours.
!
WARNING! Taking the following precautions, 
will lessen the risk of fire:
Do not smoke or place hot objects near fuel.
Always shut off the engine before refuelling.
Always stop the engine and let it cool for a 
few minutes before refuelling.
When refuelling, open the fuel cap slowly so 
that any excess pressure is released gently.
Tighten the fuel cap carefully after refuelling.
Always move the machine away from the 
refuelling area before starting.