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OWNER’S MANUAL MRT 50-MRT SM 50 MRT 50 PRO-MRT SM 50 PRO...
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The MRT 50/ MRT SM 50 and MRT 50 PRO / MRT SM 50 PRO are the resulted of the long-term experien- ce that RIEJU has had in competitions, which has led to the development of a high performance vehicle.
MOTORCYCLE DESCRIPTION This motorcycle has a 49.7cc single cylinder; liquid cooled two stroke MINARELLI motor. With a piston diameter of 40,3 mm and it has a 39 mm bore. The motor has an electronic Ignition system, CDI and a high-tension coil. The Generator provides 85 Watts and 12 volts via a regulator to supply power for the bike electrics.
The number is stamped on the right hand side of the front frame (Steering head.) is unique to every machine. This number is required to register your vehicle, this chassis or Vin number should be quoted when requesting warranty assistance or genuine Rieju spare parts.
PRINCIPAL ELEMENTS OF THE MOTORCYCLE KEYS With this model, you will be given a set of keys, which are used for the Ignition switch/Steering lock. These keys are joined together by a small plastic panel, where the key number is engraved. We recom- mend that this number is kept in a safe place in case the keys are lost.
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6-. 2 Stroke Oil level warning light (Red) This lamp illuminates when the 2 stroke oil level is low, that is to say, when it reaches the reserve level. It is vitally important that when it lights up, the 2 stroke oil tank is filled as soon as possible, should the run wit- hout 2 stroke oil, it will cause serious damage to the engine...
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7-. Headlight Main beam warning light (Blue) This indicator comes on when the headlights are on main beam. 9-. Direction indicator war- ning lamp (Green) This indicator comes on when we activate the direction indicators.
HANDLE BAR SWITCHES (Left hand side.) 1-. Indicator Switch This has 3 positions: in the centre position it is deactivated, to indicate right it must be moved to the right and to indicate left it must be moved to the left. Note that the button always returns to the central position, to switch off the direction indicators push but- ton.
CLUTCH LEVER The clutch lever is situated on the left-hand side of the handlebar. To activate it, pull the lever towards the grip or handlebar. FRONT BRAKE LEVER The front brake lever is situated on the right-hand side of the handlebar. To activate the front brake, pull the lever towards the handlebar.
If the motorcycle has no oil left, the motor would seize up immediately with serious tech- nical and costly consequences for the user. RIEJU recommends using Injection System oil. PETROL TANK To get to the tank, open it using the stopper of the tank, turning it anti-clockwise.
PETROL TAP The petrol tap is situated on the left-hand side of the vehicle, under the fuel tank. It has three positions: OFF: with the lever in this position, the fuel will not go through. Put the lever in this position when the motor is not running when parked and garaged.
CHECKS BEFORE USING MOTORCYCLE. Check the following points before using your motorcycle: Items to be checked Check-up 2 Stroke Oil tank Check the level and fill up if necessary Lights and indicators Check if they work correctly Front and rear brakes Check the brake pads for wear and test brakes Accelerator grip Check the set, regulate and lubricate if necessary...
ROUTINE TESTING FRONT BRAKE Pulling in the front brake lever operates the front brake by pumping brake fluid from the master cylinder to the front brake calliper. The brake pads are pushed by the calliper pistons against the front disc. Slowing the bike down. The braking surface of the disc should be free of oil and dirt to ensure maximum braking efficiency.
(WARNING Brake fluid is corrosive and will damage paintwork, if spilt wash off with water immediately) Always remember that the above must be carried out by a RIEJU official service.
THROTTLE TWIST GRIP Ensure it works correctly, by turning the grip and verifying if the free play is correct. The grip should return to closed position when released. LIGHTS, INDICATORS AND WARNING LAMPS Check operation of all lights, and direction indicators plus the oil warning lamp and petrol reserve panel lights.
MOTORCYCLE OPERATION It is very important to know how to operate your vehicle correctly. NOTE: remember that you must not leave the motor running in an enclosed area, as the toxic gas from the exhaust could cause serious health problems. STARTING AND RIDING.
RUNNING IN The most important period of your motorcycle’s life is between 0 and 500 kilometres and because of this we ask you to read the following instructions carefully. In the first 500 kilometres, the motorcycle must not be overworked as the motor is new and the different parts of the motor have to wear in, until it works perfectly. During this period, avoid prolonged use of the motorcycle at high revolutions or in conditions that could cause overheating.
CARBURETTOR The carburettor provides the correct petrol air mixture to the engine. It the settings are tampered with poor performance and/or overheating may occur. If you have any problems please refer to your Rieju dealer.
Fork MRT / MRT SM 50 Ø 37 mm. fork tubes Oil capacity: 245 c.c. per leg Type oil recommended: SAE 15W/20 Fork MRT 50 PRO/SRT SM 50 PRO Ø 40 mm. fork tubes Oil capacity: 325 c.c. per leg Type oil recommended: SAE 10W...
COOLING SYSTEM The radiator is mounted on the front right-hand side of the motorcycle behind a protective grill; The radiators propose is to maintain a constant engine temperature by cooling the hot water which is pumped around the engine. To check the level of coolant, carefully undo the radiator cap off and top up if necessary.
SPARK PLUG CHECK The spark plug is an important part of the motor and it is easy to check. Take the spark plug out and check it periodically, the high combustion temperatures and carbon deposits may effect the efficiency of the engine.
AIR FILTER To ensure that the engine runs correctly, the air filter must be kept clean and oiled. In order to access the air filter, disassemble the motorcycle seat, allowing free access to the filter box. Remove the cover, which is attached to the box by a screw, and remove the filter housing.
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After removal, check to see if the foam filter is blocked, in which case wash in paraffin, apply some air filter foam oil then squeeze the filter material between your hands to remove surplus oil. Do not wring out the filter element, as this will damage the foam. When refitting the air filter sure that the foam fits the box correctly so that no air can enter the engine without being filtered.
TRANSMISSION CHAIN ADJUSTING AND LUBRICATION To correct the chain tension, loosen the rear axel bolts and turn the adjustment plates of the rear wheel axle clockwise to tighten the chain and anti-clockwise to loosen the chain. Turn the rear Chain tensioner wheel several times and check the tension in various areas to find the point at which the chain is at its tightest point.
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Try not to over tighten the chain, as it will stretch and wear the sprockets much quicker and may dama- ge the gearbox. If the wheel and chain are badly aligned, this can cause the chain to come off, and severely affect the bikes handling.
GEARBOX OIL CHANGE. Drainage bolt The gearbox and the clutch are lubricated by the action of the same gearbox oil. The recommen- ded oil is SAE 10W/30, with a total gearbox capacity of 820c.c. A drainage bolt situated in the bottom right-hand side of the motor empties the gearbox.
3. Using a hose pipe remove the degreasing agent and dirt, but only with the pressure that is necessary. (DO NOT USE A PRESSURE WASHER.) NOTE: Rieju is not responsible for the use of degreasing agents that may stain or mark the body work or chassis.
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4. Once the dirt has been removed, wash all the surfaces with warm water and soft detergent. To get to the difficult areas, use a bottle-washing brush or something similar. 5. Immediately rinse with cold water and dry all the surfaces. 6.
TECHNICAL SPECIFICATIONS AND CHARACTERISTICS Model MRT / MRT - SM Dimensions: Total length / 2070 mm. 2150 mm. Total width 800 mm. 800 mm. Total height / 1145 mm. 1165 mm. Total seat height 870 mm. 890 mm. Distance between axles / 1380 mm.
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Huile de transmission: Type SAE 10W 30 Quantity 820 c.c. Air filter Humid rubber foam Petrol: Type Unleaded petrol 95 Tank capacity 6,3 L Carburettor Dellorto PHBN 16 HS Bougie: Type NGK BR 9 ES Electrodes separation 0,6 - 0,7 mm Clutch type Multidiscs in oil bath Primary transmission...
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Upside down forks Ø 37 mm. OIL FORK 15W 20, 245 cc each leg. Hydraulic shock absorber. Rear MRT 50 PRO / MRT SM 50 PRO Front Upside down forks Ø 40 mm. OIL FORK SAE 10W, 325 cc each leg.
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Brakes: MRT 50 / MRT SM 50 Front Disc 220 mm Ø Rear Disc 180 mm Ø MRT 50 PRO / MTR SM 50 PRO Front Type disc Wave 260 mm Ø Rear Type disc Wave 200 mm Ø Tyres:...
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Voltage and bulb output: Light 12 v 35/35 w Rear pilot light 12 v 21/5 w Instrument cluster 12 v 1,2 w Indicators 12 v 10 w Odometer lighting 12 v 1,2 w...
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