How to Adjust a Husqvarna 240 Chainsaw Carburetor

how to adjust the carburetor on a Husqvarna 240 chainsaw

The Swedish Husqvarna chainsaws are presented on the market with professional and household models. Excellent performance, durability, versatility make the manufacturer’s tools in demand in the global market. Reliability and durability are also ensured by the high-quality assembly of chainsaws, forged steel parts and durable plastic.

Design and scope of use

The use of the Husqvarna 240 chainsaw is not limited to standard logging functions. With its help, you can easily clean a large area of ​​shrubs and old trees, form crowns of ornamental plants in the garden, use it in construction to cut boards. Sufficient power and length of the tire allow sawing wood both along and across.

The classic brand design is combined in this model with high technical characteristics and ease of use. Saw Husqvarna 240 belong to the class of household, but its performance is not much different from professional tools. Manufacturers have provided in this saw such necessary functions as easy start-up, double air purification, reduction of vibration level. Ergonomic control levers and handle contribute to maximum comfort during work, reduce the load on the operator. The main components of the mechanism are located in such a way as to speed up and simplify access to them in case of repair.

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If you follow the operating instructions and regularly carry out routine inspections of the chainsaw, repairs in most cases can be avoided. But even in the event of a breakdown, the tool will not cause you significant inconvenience. original spare parts can easily be purchased and replaced. The detailed structure of the Husqvarna 240 chainsaw is shown in the diagram below:

Video: How to Adjust a Husqvarna 240 Chainsaw Carburetor


Technical characteristics of the Husqvarna 240 chainsaw

The basis of the Husqvarna 240 saw is a 2-stroke engine with a carburetor. It works on a gasoline-oil mixture. The motor resource is increased due to improvements in the crank assembly and the special coating of the cylinder. Fuel economy is reduced by 20% thanks to the innovative X-Torq system, which also reduces exhaust emissions. A capacious fuel tank and low fuel consumption extend the working time of the tool, without interruption for refueling.

The rest of the saw has the following technical characteristics:

  • productivity. 2 l. from.;
  • chain pitch. 3/8 inch;
  • fuel tank capacity. 300 ml;
  • oil tank. 200 ml;
  • tire length. 40 cm;
  • weight. 4.7 kg.
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How to adjust the carburetor on a Husqvarna 240 chainsaw?

Any equipment is subject to breakdowns from time to time. The main malfunctions of the Husqvarna 240 chainsaw are associated with the repair of the carburetor, other components of the fuel system, with malfunctions of the oil pump. In the event of an oil pump failure, the Husqvarna 240 chainsaw chain stops rotating due to lack of lubrication. Damage to the gas tank or fuel hoses can also be the reason why gasoline leaks from the saw. If the saw completely ceases to start, first of all you should make sure the quality of the fuel mixture, check the spark of the spark plug. If necessary, the candle is cleaned or replaced with a new one; carburetor is adjusted.

Carburetor adjustment is also required in cases where the chainsaw starts to start poorly, stalls under load, and also if the type of fuel or operating conditions have changed. Carburetor tuning should be done after preliminary cleaning of the air filters and warming up the engine.

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Next, follow this algorithm:

  1. Screw L rotates to maximum. Then immediately return the screw a quarter turn back.
  2. While holding the throttle, turn screw N.
  3. Relieve gas and turn screw T clockwise until the chain starts to move. After that, immediately turn the screw back until the chain stops.

The layout of the corresponding screws is shown below: