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10. TECHNICAL SPECIFICATIONS

10.1. Engine Data

type:

4-stroke single rotor rotary engine

power:

33 kW at 8750rpm

weight:

ca. 17 kg

torque:

39 Nm at 7500rpm

chamber volume:

294 ccm

max. rpm:

11000rpm

ignition:

magnet CDI ignition with variable ignition timing

clutch:

2-disc dry centrifugal clutch

drive:

½ in chain type 428

spark plug:

Denso U22ETR

starter (optional)

12V / 0,4kW

battery (optional)

min. 12V / 7,2Ah / temporary 100A / type MF (=maintenance free)

10.2. Fastening Torque

clutch nut:

M14x1.5

30Nm

spark plug:

M10x1

12Nm

exhaust nuts:

22Nm

engine mounts:

countersunk M8x25

26Nm

10.3. Operating Fluids

fuel:

min. premium unleaded ROZ 95

approved oil:

Mobil 1 Racing 2T

mixing ratio:

50:1 (fuel:oil)

coolant:

water (recommendation: distilled water with 3 % antifreeze)

Содержание XR50

Страница 1: ...OPERATION MANUAL...

Страница 2: ...ity But before getting started it is imperative that you read and understand instructions and procedures outlined in this operator manual You will obtain important safety advice and information about...

Страница 3: ...helps detect defects earlier and avoid dangerous accidents You will find further safety advice in this manual marked by Please read each of these tips carefully If you have any questions please contac...

Страница 4: ...reparation Control 13 6 2 Starting Heating Up On Track 13 6 3 Driving 14 6 4 Shut Down 15 6 5 Transportation 15 7 SERVICE AND MAINTENANCE 16 7 1 Clutch Bearings Drive Sprocket 16 7 2 Friction Discs Cl...

Страница 5: ...ch can be as low as 1 of comparable 2 stroke engines and reach best 4 stroke level in the driving cycle The engine can be operated with a catalytic converter The XR50 uses a carburettor and fuel lubri...

Страница 6: ...se you may damage your kart and the engine 1 Install the engine mounts if they are not yet assembled to the engine usually ship in stalled 4 countersunk screws M8x25 at 26Nm 2 Remove the clutch cover...

Страница 7: ...he Nassau Panel brackets 1 Slide the rubber carburettor connector over the inlet manifold so it snaps into the grove of the manifold and attach it with a hose clamp 2 Push the carburettor into the con...

Страница 8: ...If the open end is longer than 30mm you should secure it If your front bumper bar has a hole you can put the open end into the hole and attach it with tape It is also possible to attach it to the thr...

Страница 9: ...ywork so the starter can be removed easily after starting the engine 1 Connect the ignition wires as shown on the diagramme below 2 Attach the CDI box Typically the best position is on the back of the...

Страница 10: ...s 4 Attach the CDI box Typically the best position is on the back of the seat The CDI box should not be too close to the engine or the exhaust 5 Mount the stop button kill switch so it is easily visib...

Страница 11: ...e to the engine 3 Insert the adapter and secure it with hose clamps 4 Insert the sensor in the adapter and secure it 5 Attach the sensor and the sensor cable so both cannot make contact with moving pa...

Страница 12: ...immediately apparent Ensure that fuel and oil are pre mixed properly in a petrol can 5 3 Refuel System Fill In order to protect the engine you should never start or run the engine without sufficient...

Страница 13: ...exceeded in case of a malfunction especially if you run the engine at too high speed without load This can lead to engine detonation flying parts can cause serious injury 1 Leave the throttle in idle...

Страница 14: ...ch cable in good condition 14 Is the exhaust attached without strain or tension 15 Is the exhaust attached properly 16 Is the battery of the starter fully charged 17 Does the gearing suit the race tra...

Страница 15: ...age If you have an earlier model of the XR50 have the ignition replaced to protect the en gine from too high speed as this can lead to engine detonation flying parts can cause serious injury 6 3 2 Wat...

Страница 16: ...engine because the wa ter pump is not running any more and the radiator is not cooled by any wind Lubricate the chain with chain lube immediately after driving While still warm the chain ab sorbs lub...

Страница 17: ...basis We recommend an interval of 1 2 hours of operation Use high temperature bear ing grease and a Aixro clutch wrench When disassembling the clutch check the condition of the drive sprocket and repl...

Страница 18: ...wavy pressure or spacer plate 6 Put the clutch together again 7 Re assemble the clutch plate with the 8 screws Hold it in place with the clutch wrench and tighten the screws evenly and sufficiently 8...

Страница 19: ...othly or if it stutters at 4000 6000rpm check the air filter and clean it if necessary If the vent pipes of the carburettor have sharp bends the carburettor function may be con stricted as well Anothe...

Страница 20: ...arburettor is blocked too late In this case reduce the float level 8 6 Engine Suddenly Lean If the engine suddenly develops a lean condition or the idle speed is higher than nor mal you should reduce...

Страница 21: ...standard setting because overheating can be caused by driving mistakes driving constantly at low speed accelerating and braking at the same time etc 9 3 Carburettor Adjustment It is not a problem to r...

Страница 22: ...ng clutch 2 disc dry centrifugal clutch drive in chain type 428 spark plug Denso U22ETR starter optional 12V 0 4kW battery optional min 12V 7 2Ah temporary 100A type MF maintenance free 10 2 Fastening...

Страница 23: ...customer to provide evidence for the date of purchase the hours of op eration proper maintenance proper adherence to overhaul intervals and proper use of the engine 11 3 Warranty Procedure In case of...

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