Fuel Mixture; Mixing Instructions; Starting And Stopping - Maruyama B420L Manual Del Propietario U Operador

For your fuel premix, use MARUYAMA
Premium two-stroke Oil Mix, or equivalent
ISO-L-EGD & JASO FD oil with a minimum
89 octane high quality gasoline. MARUYAMA
two-stroke oil is specially formulated to meet
the requirements of high-performance,
low-emission air-cooled two-stroke engines. Use
of other oils may lead to service issues which
may not be covered by your warranty.

Fuel Mixture

The fuel: oil ratio is 50 parts gasoline to 1 part oil or
50:1.
NOTE: Never use a mixing ratio less than 50:1
regardless of the oil package mixing instruc-
tions. Ratios less than 50:1, (for example, 60:1,
80:1, 100:1), reduce the amount of lubrication to
the internal moving parts of the engine and can
cause damage.
Fuel Mixture Chart
Gasoline
1 gallon
2 gallons
5 gallons
1 liter
5 liters

Mixing Instructions

IMPORTANT: Never mix gasoline and oil
directly in the Trimmer/Brushcutter fuel tank.
1. Always mix fuel and oil in a clean container
approved for gasoline.
2. Mark the container to identify it as fuel mix for
the Trimmer/Brushcutter.
3. Use regular unleaded gasoline and fill the contain-
er with half the required amount of gasoline.
4. Pour the correct amount of oil into the container
then add the remaining amount of gasoline.
5. Close the container tightly and shake it momen-
tarily to evenly mix the oil and the gasoline before
filling the fuel tank on the Trimmer/Brushcutter.
50:1
50:1 two-stroke oil
2.6 oz
.
5.1 oz.
12.8 oz.
20 mL
100 mL
— US-15 —
6. When refilling the Trimmer/Brushcutter fuel tank,
clean around the fuel tank cap to prevent dirt and
debris from entering the tank during cap removal.
7. Always shake the premix f uel container
momentarily before filling the fuel tank.
8. Always use a spout or funnel when fueling to
reduce fuel spillage.
9. Fill the tank only to within 1/4-1/2 in. (6 mm-13
mm) from the top of the tank. Avoid filling to the
top of the tank filler neck.

Starting And Stopping

Before Starting The Engine
1. Fill the fuel tank as instructed in the Before
Operation section of this manual (US-13).
2. Rest the Trimmer/Brushcutter on the ground.
3. Make sure the cutting attachment is clear of any
broken glass, nails, wire, rocks or other debris.
4. Keep all bystanders, children and animals away
from the working area.
Cold Starting Procedure
This Trimmer/Brushcutter is equipped with a fuel
primer and a choke system. To start a "cold" engine
properly, perform the following procedure:
1. Pump the primer bulb until fuel can be seen flowing
through the fuel return line to the fuel tank.
(Flowing fuel should be almost clear, not foamy or
full of bubbles.)
Fuel Return Line
Choke Lever
Primer Bulb
Starter Grip