MAINTENANCE

Carburettor

Your Jonsered product has been designed and manufactured to specifications that reduce harmful exhaust fumes. The engine will be run in after it has used 8-10 tanks of fuel. To ensure that the engine runs at peak performance and produces as little harmful exhaust fumes as possible after the running-in period, ask your dealer/service workshop (which has a rev counter for this purpose) to adjust your carburettor.

WARNING! The complete clutch cover

! and shaft must be fitted before the machine is started, otherwise the clutch can come loose and cause personal injury.

Function

•The carburettor governs the engine’s speed via the throttle control. Air and fuel are mixed in the carburettor. The air/fuel mixture is adjustable. Correct adjustment is essential to get the best performance from the machine.

•Adjusting the carburettor means that the engine is adapted to local operating conditions, e.g. climate, altitude, petrol and the type of 2-stroke oil.

•The carburettor has three adjustment controls: L = Low speed jet

H = High speed jet

T = Idle adjustment screw

L

H

T

•The L and H-jets are used to adjust the supply of fuel to match the rate that air is admitted, which is controlled with the throttle. If they are screwed clockwise the air/fuel ratio becomes leaner (less fuel) and if they are turned anti-clockwise the ratio becomes richer (more fuel). A lean mixture gives a higher engine speed and a rich mixture gives a lower engine speed.

•The T-screw regulates the throttle setting at idle speed. If the T-screw is turned clockwise this gives a higher idle speed; turning it anti-clockwise gives a lower idle speed.

Basic setting

•The basic carburettor settings are adjusted during testing at the factory. The basic setting is richer than the optimal setting and should be maintained for the first few hours the machine is in use. The carburettor should then be finely adjusted. Fine adjustment should be carried out by a skilled technician.

CAUTION! If the cutting attachment rotates when the engine is idling the idle adjustment screw T should be turned anti-clockwise until the cutting attachment stops.

Rec. idle speed: See the Technical data section.

Recommended max. speed: See the Technical data section.

WARNING! If the idle speed cannot be

! adjusted so that the cutting attachment stops, contact your dealer/service workshop. Do not use the machine until it has been correctly adjusted or repaired.

Fine adjustment

•When the machine has been ”run-in” the carburettor should be finely adjusted. The fine adjustment should be carried out by a qualified person. First adjust the L- jet, then the idling screw T and then the H-jet.

Conditions

•Before any adjustments are made, make sure that the air filter is clean and the air filter cover is fitted. If you adjust the carburettor when the air filter is dirty it will result in a leaner mixture when the filter is finally cleaned. This can lead to serious engine damage.

•Carefully turn both jets, L and H, so that they are midway between fully screwed in and fully screwed out.

•Do not attempt to adjust the L and H jets beyond either stop as this could cause damage.

•Now start the machine according to the starting instructions and let it warm up for 10 minutes.

CAUTION! If the cutting attachment rotates when the engine is idling the idle adjustment screw T should be turned anti-clockwise until the cutting attachment stops.

22 – English

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Jonsered GC2236 manual Maintenance, Carburettor
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GC2236 specifications

The Jonsered GC2236 is a robust and versatile garden tractor designed for homeowners seeking efficient performance in lawn maintenance. With a focus on durability, ease of use, and advanced technology, this machine has garnered attention among gardening enthusiasts and professionals alike.

At the heart of the Jonsered GC2236 is a powerful engine featuring a reliable Briggs & Stratton design. This engine provides ample horsepower to tackle a variety of tasks, from mowing to towing, ensuring that you can maintain your lawn or garden with ease. The engine is paired with a rugged transmission that offers smooth speed variations, allowing users to adapt their pace according to the terrain and requirements of the task at hand.

One of the standout features of the GC2236 is its cutting system. It comes equipped with a 36-inch cutting deck that delivers a clean and even cut, enhancing the overall appearance of your lawn. The cutting height is easily adjustable, making it simple for users to customize their mowing experience based on grass length and conditions. The deck design allows for efficient grass collection, reducing the need for subsequent raking or clean-up.

Comfort is a key consideration in the design of the Jonsered GC2236. The tractor features a spacious, ergonomically designed seat that ensures a comfortable riding experience during extended periods of use. Additionally, the easy-to-use controls and intuitive dashboard contribute to user-friendly operation, making it accessible for gardeners of all skill levels.

Technological advancements are also integrated into this model. The GC2236 is designed with enhanced maneuverability, allowing operators to navigate tight spaces and obstacles with confidence. Its tight turning radius helps make trimming around flower beds and trees much simpler. Furthermore, the tractor's sturdy build quality and durable components ensure that it can withstand the rigors of regular use.

For those who appreciate convenience, the Jonsered GC2236 offers practical features such as a spacious cargo area for transporting tools and equipment. Its towing capacity allows users to attach trailers or other accessories, expanding its functionality beyond just mowing.

In conclusion, the Jonsered GC2236 is a standout garden tractor that combines performance, comfort, and technology to provide an exceptional gardening experience. Whether tackling large lawns or intricate landscaping, this garden tractor is a reliable choice for anyone looking to maintain their outdoor space efficiently.
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