Husqvarna 350BT Operator's Manual page 11

Maintenance
Clean the fuel tank.
Examine all cables and connections.
Examine and clean the spark arrestor screen on the muffler (for products without
catalytic converter).
Examine and clean the spark arrestor screen on the muffler (for products with
catalytic converter).
Examine the spark plug. Replace if it is necessary.
To adjust the idle speed
1. Make sure that the air filter is clean and that the air
filter cover is attached.
2. Adjust the idle speed with the idle speed screw. To
see where the idle speed screw is on your product,
Product overview on page 2 .
refer to
To do a check of the spark plug
CAUTION: Use the recommended spark
plug. Refer to
An incorrect spark plug can cause damage
to the product.
1. Stop the engine and let the product become cool.
2. Clean the spark plug if it is dirty.
3. Make sure that the electrode gap is correct. Refer to
Technical data on page 15 .
4. Replace the spark plug monthly or more frequently if
it is necessary.
To do maintenance on the muffler
1. Stop the engine and let the muffler become cool.
Always use protective gloves.
1246 - 001 - 14.02.2020
Technical data on page 15 .
2. Remove the screws (A), the screws (B) and the
exhaust duct (C).
C
B
3. Remove the spark arrester screen (D) and clean it
with a wire brush. Replace the spark arrester screen
if it is damaged.
4. Remove dirt from muffler and from the exhaust port
of the cylinder with the wire brush.
5. Attach the spark arrester screen (D) and the exhaust
duct (C) with the screws (B). Tighten the screws to
2-3 Nm.
6. Tighten the screws (A) to 8-12 Nm. Make sure that
the muffler is correctly attached to the product.
To examine and clean the cooling
system
The cooling system includes the cooling fins on the
cylinder and the air intake screen.
1. Stop the engine.
2. Make sure that the cooling system is not dirty or
blocked. If it is necessary, clean the air intake screen
and cooling fins.
CAUTION: A dirty or blocked cooling
system can increase the temperature of
the engine and cause damage to the
product. A clogged air intake screen
decreases the blow force.
3. Examine the cooling system for damages. Make
sure that the parts are attached correctly to the
product.
Daily Weekly Monthly
X
A
D
A
X
X
X
X
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