Solo USA 444, 450 manual Spark Plug, Preparation for Storage, Carburettor adjustment

Maintenance and Care

4.3 Spark Plug

The correct spark plug with thermal range 200 is available under the following brands:

BOSCHWSR6F CHAMPION RCJ-6Y or similar

The correct electrode gap is 0.5 mm.

Check the plug after every 50 operating hours and replace if electrodes are worn.

4.4 Preparation for Storage

Store the motorized mistblower in a dry room. Cover the unit and keep inaccessible to children.

Treatment with special anti-corrosion oil is not required if the mistblower is normally used with SOLO 2T Oil two-cycle oil in the fuel mixture.

For extended storage, completely empty the fuel tank.

4.5 Carburettor adjustment

The carburettor has been adjusted optimally at the factory. Subject to the operational altitude (mountains or low lying areas), the carburettor may require readjustment.

Fig. 2a,

Type 444

Fig. 2b, Type 450

The carburettor has 3 adjusting screws:

•Idling end-stop screw "T"

•Low speed mixture screw "L"

•High speed mixture screw "H"

Only qualified mechanics must adjust the regulating screws for idle mixture "L" and full

load mixture "H".

Turn the idling end-stop screw "T" to adjust the idling speed in accordance with the details provided in the specification. Use an engine rev counter for this job.

•If the idling speed is too high, turn the idling end- stop screw "T" anti-clockwise.

•If the idling speed is too low (engine stops) turn the idling end-stop screw "T" clockwise until the engine runs smoothly.

If the idling speed cannot be set correctly with the idling end-stop screw "T", request an authorised service centre to tune the carburettor.

The following instructions are for authorised service shops

Information about the standard settings can be requested from the specialist workshop of our customer service department or downloaded from our Internet portal for specialist dealers at www.part-and-more.org.

D-CUT carburettors:

Use the D-CUT carburettor key to adjust the idle mixture screw "L" and the full load mixture screw "H".

Carburettors with limiter caps:

The regulating screws for idle mixture and full load mixture can only be adjusted in a limited range.

Clean the air filter before adjusting the low speed screw!

Let the engine run warm before adjusting the engine speed.

The carburettor is tuned for optimum engine performance. Use a rev counter to tune the

carburettor correctly!

Do not adjust the engine to a higher speed. Excessive engine speed can lead to major engine damage!

ENGLISH 9