GAS GAS thanks you for your confidence. By choosing the new GAS GAS EC 250-F SUOMI you have just entered the great GAS GAS family and, as a user of the number one off-road motorbike manufacturer, you deserve the distinguished treatment that we wish to offer to you both in our after-sale relationship and in the explanations that we provide in this manual.
Read this manual carefully. This manual covers aspects that will contribute to your security and to that of others, as well as guaranteeing a correct conservation and maintenance of this GAS GAS motorcycle you have just acquired. TO PROTECT THE FUTURE OF YOUR SPORT, MAKE SURE...
TABLE OF CONTENTS Chain guide...................26 Foreword..................3 Tension adjustment ..............27 Important notice ................4 Handle bars ..................29 Table of contents ................5 Brakes...................29 Specifications..................6 Steering ..................31 Component locations ..............8 Steering lock .................32 Side stand..................10 Front forks..................33 Petrol ....................10 Rear suspension................36 Serial number and the qualification approval plate.......11 Wheels..................38 Starting and stopping the engine ..........12 Cleaning..................39...
SPECIFICATIONS ENGINE Engine 4 stroke, single-cylinder DOHC 5 valves, liquid cooled Displacement in cubic centimetres 249cc Bore and stroke 77 x 53,6mm Fuel supply Carburator Keihin FCR MX37 TRANSMISSION Transmission type 5 speed Clutch type Multi disc wet clutch with hydraulic command Secondary transmission Chain Gear ratio...
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Suspension Front ø 48 mm inverted fork ø 45 mm inverted fork Rear Progressive system with single multi-adjustment shock absorber Suspension stroke Front 295 mm Rear 320 mm Front suspension oil Between SAE 5 and 7.5 (check manufacturer’s information) Front fork oil level 110 mm (compressed, without spring) BRAKES Type...
LOCATION OF COMPONENTS GAS GAS EC250 F 1- Clutch handle 2- Engine start button 3- Fuel tank cap 4- Front brake fluid tank 5- Front brake handle 6- Throttle control Clutch fluid tank...
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8- Front suspension 17- Rear shock absorber 9- Radiator 18- Chain guide 10- Fuel tank 18- Chain 11- Air filter 20- Silencer 12- Seat 21- Rear shock absorber gas tank 13- Front brake disk 22- Tie rod and rocker suspension 14- Front brake callipers 23- Rear brake pedal 15- Rear brake fluid tank...
PETROL To unfold the side stand (A) must be opened to vertical position. The GAS GAS EC 250 F has a four stroke engine and requires 98 octane, unleaded petrol. The stand returns to its original position with the aid of the spring (B).
RECOMMENDED FUEL SERIAL NUMBER Use lead-free petrol with an octane rating equal to or higher than Printed on the steering tube. Indicates the frame number with which that shown in the table. the motorcycle is registered. Qualification approval plate OCTANE RATING METHOD OCTANE RATING (MIN) The motorcycle is fitted with its own corresponding qualification...
STARTING THE ENGINE STOPPING THE ENGINE - Ensure that the motorcycle is in neutral. - Change gear to neutral. - After accelerating lightly, cut the gas completely and press button - Press button (A) to turn on the electrical circuit, so that the motor (C).
COLD STARTING SHIFTING GEARS The transmission is with 5 speeds, return shift type meaning that to To do the cold start, pull the starter. go back to first gear from a higher gear, you must shift back through the gears one by one. To engage first gear from neutral, pull in the clutch lever and push down on the shift pedal then release the pressure on the shift pedal and gently release the clutch lever.
STOPPING THE MOTORCYCLE NOTE The slow speed necessary during the break-in period may cause For maximum deceleration, close the throttle (A) and apply both carbon to build up on the spark plug and soil it. If inspection front and rear brakes. Disengage the clutch as the motorcycle comes of the spark plug shows this to be the case, replace the standard to a stop.
MAINTENANCE CHART Period Period Period Article First 5 hours Every 30 hours Every 60 hours Inspect each time that the motorcycle has run or when necessary Air filter *Exhaust connectors and bolts *Valve tolerances Spark plug Fuel tub *Revise every 4 years Engine oil and filter oil *Engine oil pipes Coolant...
BATTERY 3. Disconnect the terminals ensuring that they do not enter into contact with metal parts then extract the This battery is maintenance free and checking the fluid level is not battery. required. It is advisable to check the charge of the battery periodically WARNING To remove the battery, follow these steps: Hydrogen gas produced by the battery may explode if exposed to...
- Recommended charging duration = 5 - 8 hours. CAUTION Using a high pressure water source could damage the radiator fins - The product (charge current) X (charge duration) must be within and render it ineffective. the range: 0.5 - 0.8 Cn. Do not obstruct or deviate the radiator air intake by installing non- approved accessories.
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Coolant Level CAUTION Use of incorrect coolant solutions will cause severe engine and - Situate the motorcycle so that it is perpendicular to the ground. cooling system damage. - Remove the radiator cap in two stages. First turn the cap anti-clock Use coolant containing corrosion inhibitors made specifically for wise and wait for a few seconds.
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NOTE Changing the coolant Check the level when the engine is cold. - The coolant should be changed periodically to ensure long engine life. - Wait for the engine to cool completely. - Situate the motorcycle so that it is perpendicular to the ground. - Remove the radiator cap.
- Examine the used coolant. If white cotton-like patches appear in between electrodes using a gauge and adjust in case that it is not the liquid then this means that the aluminium elements of the cooling correct by bending the outer electrode. If the spark plug electrodes system are corroded.
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2. Remove the bolts WARNING (C) (left and right). An incorrectly fitted spark plug, or an incorrect temperature can lead to severe damage to the engine, and this damage is not covered by the warranty. Always use the manufacturer's recommended brand of spark plug. Check with your dealer or a qualified mechanic to determine the correct spark plug for your motorbike.
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5. Close the fuel tap F and remove the fuel tub G. 6. Remove the spark plug hood. NOTE WARNING A cap protects the spark plug. Keep this clean and dry. Becareful to the fuel loss when you remove the fuel tub, the fuel is highly flammable.
- Remove the seat. AIR FILTER - Remove the bracket (A) and remove the filter (B). An obstructed air filter restricts the air intake of the engine, increasing the petrol consumption and reducing the engine power as well as the destruction of the spark plug. WARNING An obstructed air filter may allow dirt to enter into the injector blocking it open;...
THROTTLE CABLE - Clean the filter in a filter bath using a soft brush. - Check that the throttle grip turns smoothly - Check that the throttle grip has 2-3 mm of play. - If the clearance is incorrect, pull out the rubber protection from the tensioner (A), unlock the locknut (B) and adjust the tolerance with the tensioner.
CLUTCH THE EXHAUST SYSTEM Proper clutch lever play is 2-3 mm. Play increases with the clutch The exhaust and the silencer reduce noise and carry the gasses wear and thus requires adjustment. away from the driver. When there is too much play, first try to adjust the level of the clutch If the exhaust is damaged, rusted, dented or split then change it.
Changing the silencer packing WARNING - Remove the cover rivets (A). A chain that breaks or jumps off the sprockets could snag on the - Extract the silencer cover (B). engine sprocket or lock the rear wheel, severely damaging the - Pull out the inner silencer.
In addition to checking the slack, rotate the rear wheel to inspect NOTE the drive chain and sprockets for damaged rollers, loose pins and Wheel alignment can also be checked using the straightedge or string method. links, unevenly or excessively worn and damaged teeth. TENSION ADJUSTMENT WARNING -Loosen the rear axle nut.
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NOTE Chain guide slide For maximum resistance and safety, a genuine part must be used for replacement. Visually inspect the upper and lower part of the chain slider on the To minimize any chance of the master link coming apart, the swing arm.
Apply oil to the side of the links so that it will penetrate better. Wipe Tighten the bolts securely; first the forward bolts then the rear, to a off any excess oil. torque of 25 Nm. If the handlebar is correctly installed, there will be a minimal gap at the front and rear of the clamp after tightening (A).
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Front brake lever Adjust brake lever to a comfortable position. To adjust, loosen the nut under the rubber protection (B). Tighten after adjustment. Ensure that the brake responds correctly. (A). Brake pedal. (B). 10 mm of play. (A). Brake lever. WARNING (B).
If the thickness of either pad is less than 1 mm, replace both pads in the calliper as a set. Pad replacement should be done by an authorized GAS GAS dealer. STEERING The steering should always be kept adjusted so that the handlebar...
To check the steering adjustment, lift the bike off the ground using - Install the upper suspension plate (D). a stand underneath the chassis. Push the handlebar lightly to either - Tighten the steering stem nut (B), the washers and bolts on the side;...
- Using a stand under the frame, and stabilize the motorcycle. CAUTION - Place a support under the engine so that the front wheel is raised Never leave the key in the latch. If the steering is turned to the left off the ground.
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Adjust the return to the standard measures (turn at the reverse of Standard oil level the clock. 16 clicks). 110 mm CAUTION The front fork left and right tubes must be at the same level and aligned with the plate. Adjusting the compression - To adjust the compression, turn with a screwdriver the bottom screw from the front fork.
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(1). Spring. (2). Counter nut. (3). Suspension cap. (4). Cap spanner. (5). Counter nut spanner. Suspension rod spring Different springs can be used depending on the weight of the driver (A). Hydraulic rod and the track conditions. - Hard springs make the forks harder and the rebound faster. - Light springs make the forks softer and the rebound slower.
Shock absorber extension adjustment To adjust, turn by hand the extension adjuster in the lower part of the shock absorber until a “CLICK” is heard. Rebound adjustment standard measures: 10 “CLICKS” SACHS. (Counterclockwise from fully closed position). (1). Suspension top bridge position. (A).
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Suspension spring The standard spring is 5 SACHS. Preload SACHS: 10 mm (A). Nut. (B). Spring. (A). High compression adjustment. (C). Locknut. (B). Low compression adjustment. - Tighten the locknut securely. Spring adjustment - After adjustment, move the spring up and down to make sure that the spring is fully seated.
WARNING Improper removal of the spring from the rear shock absorber body may cause the spring and associated parts to be ejected at high velocity. Always wear eye and face protection. Removal and installation of spring should be performed by an official distributor. WHEELS Tyre (A).
CLEANING 3- After cleaning - Remove the plastic bags and clean the air filter intake. 1- Preparation for cleaning - Lubricate the locations listed in the lubrication section. - Start the engine and let it heat for 5 minutes. Before cleaning the motorcycle must be prepared so that water does - Check the brakes before driving the bike.
TIGHTEN BOLTS AND NUTS Every day before using the bike, rapidly ensure that all bolts and nuts are tightened. Also make certain that all of the other fastenings are in place and in good condition. 1- Front and rear wheels 10- Front axle bolt 18- Rear axle bolt 27- Rear brake pedal bolt...
TIGHTENING TORQUE TABLE Tighten all of the bolts and nuts using the correct spanners. If not correctly tightened then motorcycle damage or even an accident could occur. PART NAME Engine drain plug Kick pedal bolt Kick pedal nut Shift pedal bolt Spark plug Water pump cover drain plug Calliper mounting bolts...
LUBRICATION Lubricate the points shown here, with either motor oil or regular grease, periodically or whenever the vehicle is wet, and especially after using a high-pressure spray washer. Before lubricating each part, clean off any rusty spots with rust remover and wipe off any grease, oil, dirt, or grime.
Chain lubrication The recommended viscosity is SAE 5 W-40. If it’s not possible, look at the lower table to find another viscosity. Lubricate the chain after wet terrain or when the chain looks dry. A high viscosity oil rather than low viscosity oil is better because it will Checking the oil level and making the changes periodically are two stay a long time in chain providing lubrication.
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NOTE Put used motor oil in an appropriate container for recycling. WARNING Always use original GAS GAS parts. If the filter is incorrectly positioned, the engine oil will not flow, 2. With the motorbike parked on a flat provoking a malfunction in the engine.
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The engine may be damaged if the oil is not used properly or the specifications recommended by GAS GAS MOTOS are not followed. Use the type of oil specified in the section on Petrol and Oil recommendations.
TUNING THE SUSPENSION Front forks No area of machine adjustment is more critical than proper suspension The fork oil level is adjustable. A change in the oil level will not affect tuning; an incorrectly tuned suspension will keep even the best rider the lower part of the stroke, but it will affect the upper part.
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Changing incorrect adjustments Rear shock absorber symptoms Listed below are some symptoms of improper suspension settings - Too hard and the most adequate means of correcting them. 1. Rigid suspension. . High compression. The proper settings can be achieved by applying the information in .
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Experience Front and rear compatibility Beginner: softer spring with more rebound damping. Use this procedure to determine if the suspension is balanced Experienced: Harder spring. reasonably well: Situate the motorcycle so that it is perpendicular to the ground. While standing next to the machine, pull on the front brake and place one foot on the brake firmly.
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Front fork doesn’t respond to small potholes in wide turns - Bottoms at low speed: Increase spring preload to maximum. - Front fork hard: - Bottom after successive 3 or 4 successive jumps. 1. Decrease the compression damping or rebound damping. 2.
5. In dusty conditions as the air cleaner collects dust, the engine 26. Tighten the spokes runs richer. 27. Tyre air pressure 28. Tighten chain SPARE PARTS AVAILIBLE 29. Coolant Level Your Gas Gas dealer will provide any information you may require about spare parts.
(2). Following a day of competition STORAGE 1. Clean the air filter and change the oil filter and the engine oil. 2. Adjust the chain tension / slack When the motorcycle is to be stored for any length of time, it should 3.
GAS GAS MULTIFUNCTION INSTRUCTIONS The multifunction apparatus, which is waterproof, has 2 LED indicators on a central indicator screen. This central indicator screen, made of liquid crystal and with illumination, gives information about speed, distance travelled, total kilometres travelled, time, average speed, maximum speed, ambient temperature, length of time with motor running and total time.
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Technical characteristics FUNCTIONS SYMBOL TECHNICAL INCREMENTS PRECISION CHARACTERISTICS CURRENT SPEED SPD: - 399.9 kmph or mph 0.1 kmph or mph +/- 0,1% TIME RUNNING - 9999 hours 59 minutes 1 second +/- 0.1% ODOMETER 0.0 – 999999 +/- 0,1% OPERATION TIME 0 - 999 hours 59 minutes 1 minute +/- 0.1%...
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Functions ODO: Odometer It shows the total mileage accumulated by the vehicle. The data is stored in the memory, even when the device is not running. SPD: Speedometer ART: Time of use controller The speedometer information appears in the centre of the screen. Calculates the total time in operation.
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Setting the multifunction display parameters After confirming each value, the display goes from one screen to the next until all have been displayed. If no button is pressed, the display returns to the home screen after 15 seconds. Activating adjustment mode Selecting the speed unit To start setting mode for the To change between kmph and...
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Selecting the temperature unit Selecting the warning To change the temperature temperature display between ºC and ºF, press Note: button 1. This step can only be taken on Confirm by pressing button 2. vehicles fitted with the optional temperature sensor. When the engine temperature exceeds the set value, the warning LED on the left lights up.
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Resetting the display functions after each use of the vehicle. Total reset of the display Press the RESET button, using a suitable object. The display will start from zero, except for the data for total accumulated distance and time. After each use of the vehicle, the following functions can be reset Internal battery simultaneously: - Maximum speed...
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Screen options When the display is powered by the internal battery only, the screen lights up partially for 3 seconds when the button is pressed. If the lighting is connected to the 12V system on the vehicle, it will The multifunction display shows all the information on three different screens.
FAULT DIAGNOSIS NOTE This is not an exhaustive list, it is meant simply as a rough guide to assist troubleshooting for some of the more common difficulties. FAULT CAUSE SOLUTION - The fuse for the starter relay is - Remove the seat and change the starting relay fuse The starter motor does not work blown.
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FAULT CAUSE SOLUTION Engine rotates but does not start The CDI connector, the generator or the - Clean the connectors and use a electric contact spray bobina are oxidised or disconnected. -Clean the venting tub from the fuel tank - Petrol / gas mixture incorrect (Trim Epprom).
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FAULT CAUSE SOLUTION - The quality or viscosity of the oil – Correct the engine oil level. Drain oil as necessary from High oil consumption is insufficient. the engine. - Empty the engine oil and fill with oil of the recommended - Ignition problems.
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FAULT CAUSE SOLUTION - Replace the down selector mechanism spring. Gears don’t engage - The spring of the selector is broken. - Cylinder change if broken. - Replace the gear drum. - Gear ratchet spring broken. - Replace the ratchet spring of the selector. - Change gear fork.
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FAULT CAUSE SOLUTION Shock absorption too hard - Rear shock badly adjusted - Adjust the rear shock. Shock absorption too soft - Front forks low oil. - Add oil to the forks as required. - Front fork oil viscosity too low. - Empty the fork oil and fill with oil of the recommended - Front forks twisted.
FAULT CAUSE SOLUTION Motorcycle pulls to one side - Chassis twisted. - Change the chassis. Go to a specialist workshop. - Steering incorrectly adjusted. - Adjust the steering. Go to a specialist workshop. - Steering shaft bent. - Change steering shaft. Go to a specialist workshop. - Front forks twisted.
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Warranty terms of the manufacturer GASGAS Motos, S.A. The company GAS GAS MOTOS, S.A. (hereafter referred to as “GG”), with this present document guarantees the consumer, the purchaser of a vehicle manufactured by GG, that both the materials and the manufacturing are free of defects in accordance with the highest standards of quality.
Obligation of the purchaser GG will have the right to reject any claims under Warranty in the event that: a) The purchaser has failed to submit the vehicle to any of the inspections and/or maintenance work required in the Users’ Manual, or has exceeded the date set for such inspections or maintenance work.
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e) Any damages caused as a result of the defects, as well as any expenses incurred either directly or indirectly as a consequence of the defects (for example, communication costs, accommodation expenses, car hire costs, public transport costs, breakdown truck fees,, courier costs, etc.), as well as other financial losses (for example, those caused by the loss of the use of the vehicle, loss of income, time lost, etc.) f) Any acoustic or aesthetic phenomenon that does not significantly affect the condition or use of the motorcycle (for example, small or hidden imperfections, noise or vibrations that are normal in use, etc.)
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