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BRP-Rotax

Operators Manual

OPERATING LIMITS

Operating the engine is only permitted under following conditions:
Recommended coolant temperature rang: 45 °C – 85 °C (113 °F – 185 °F).

ATTENTION

Operating the engine at a too low temperature could result in piston seizure.

The engine is only allowed to be run at peak performance after reaching the specified

operating temperature.

NOTE

If the engine does not reach the minimum specified operating temperature due to
the low ambient temperature, then the cooling efficiency of the radiator must be
reduced by partially covering the radiator with adhesive tape.

ATTENTION

Non-compliance can result in engine damage!

The maximum operating temperature of the engine must not be exceeded. If the tem-

perature is too high, it may result in piston seizure.

NOTE

Dirt must be cleared from the lamination of the radiator at regular intervals to
achieve the best cooling performance.

______________________________________________________

Page 10
Edition: March 01 2021

Effectivity: 125 MAX DD2 evo

Содержание 125 DD2 MAX EVO

Страница 1: ...OPERATOR S MANUAL 125 DD2 MAX EVO KART ED 03 2021 PART NO 297732 ROTAX KART COM...

Страница 2: ...Follow us BRP Rotax GmbH Co KG Rotaxstra e 1 4623 Gunskirchen Austria T 43 7246 601 0 F 43 7246 6370 www rotax kart com GENERAL INFORMATION BRP ROTAX RECOMMENDS PRODUCTS OF THE FOLLOWING COMPANIES...

Страница 3: ...rch 01 2021 Table of Content Chapter INTRO GENERAL INFORMATION Chapter 1 Technical Description Chapter 2 Operating fluids and battery Chapter 3 Engine calibration Chapter 4 Engine operation Chapter 5...

Страница 4: ...Page 2 Edition March 01 2021 Effectivity 125 MAX DD2 evo NOTES BRP Rotax Operators Manual...

Страница 5: ...eatures models or equipment without incurring obligation Engine performance may vary depending on among other things general conditions ambient temperature and altitude Contents This Operators Manual...

Страница 6: ...ce and tips m WARNING This vehicle may exceed the performance of other vehicles you may have ridden Take time to familiarize yourself with your new vehicle ____________________________________________...

Страница 7: ...eneral 2 Cooling circuit 2 Balance gear 3 Ignition unit 3 Electric starter 3 Electro pneumatically exhaust timing control 3 Intake silencer 3 Exhaust system 4 Gearbox 4 Electronic Shifting Assistant E...

Страница 8: ...____________________________________________________ COOLING CIRCUIT The coolant is pumped from the radiator to the water pump which is driven by the clutch shaft The water pump conveys the coolant th...

Страница 9: ...itch re set from START to ON is integrated ________________________________________________________________ ELECTRO PNEUMATICALLY EXHAUST TIMING CONTROL The engine type 125 MAX DD2 evo is equipped wit...

Страница 10: ..._____________________________________________ ELECTRONIC SHIFTING ASSISTANT ESA To optimize the shifting from 1st to 2nd gear the ignition is interrupted for a short time This releases load from the g...

Страница 11: ...4 000 rpm the centrifugal clutch is completely engaged ________________________________________________________________ OVERLOAD CLUTCH The engine has a mechanical overload clutch which is installed...

Страница 12: ...Page 6 Edition March 01 2021 Effectivity 125 MAX DD2 evo NOTES BRP Rotax Operators Manual...

Страница 13: ...hapter 2 OPERATING FLUIDS AND BATTERY TOPICS IN THIS CHAPTER Coolant 2 Battery 3 Battery charging unit 4 Fuel 6 See also table important information summary in Chapter 5 Effectivity 125 MAX DD2 evo 2...

Страница 14: ...gal for the complete cooling system Big radiator approx 0 7 liter 0 185 gal for the complete cooling system 2 Close radiator cap ATTENTION Observe the storage conditions Storage below the freezing te...

Страница 15: ...e following with the spark plug removed it is easier for the electric starter to crank the engine which reduces current absorption of the electric starter result ing in battery voltage adequate to gen...

Страница 16: ...nge to green but the charging current will remain thus warranting a fully charged battery 4 The charging time amounts to approx 12 hours NOTE The battery charger may be connected to the battery for a...

Страница 17: ...the battery charging unit manufacturer NOTE When the battery is charged while not mounted on the kart use the connector ca ble part no 266022 If needed contact your authorized distributor or one of t...

Страница 18: ...ath Never perform mixing and fuelling in closed rooms handle fuel in well ventilated areas only m WARNING Non compliance can result in serious injuries or death Fuel the kart only when engine is not r...

Страница 19: ...r well to ensure adequate mixing of the gaso line with the oil ATTENTION Ensure that no contamination enters the fuel tank and the carburetor ATTENTION Unleaded fuel has a limited storage life Store o...

Страница 20: ...Page 8 Edition March 01 2021 Effectivity 125 MAX DD2 evo NOTES BRP Rotax Operators Manual...

Страница 21: ...rocedure 2 Performance graphs 2 Carburetor calibration 4 Automatic set up 5 Manual set up 8 Change of the carburetor main jet 12 Choose of gear ratio 15 Exchange of gear reduction ratio 17 Operation o...

Страница 22: ...15 min up to 10 000 rpm 15 min up to 12 000 rpm 15 min full load 2 Reduce the main jet size step by step e g 172 170 168 NOTE Make sure that the coolant temperature reaches a minimum of 55 C 130 F At...

Страница 23: ...BRP Rotax Operators Manual Figure 3 1 Performance graphs ______________________________________________________ Effectivity 125 MAX DD2 evo 3 Page 3 Edition March 01 2021...

Страница 24: ...l no longer apply if the carburetor calibration is carried out improperly and causes engine damage The following application for smartphones shows the individual setting of your ROTAX 125 Max DD2 evo...

Страница 25: ...pp will automatically provide all the nec essary information regarding weather and geographical position Figure 3 2 Step Procedure 2 To select your engine type for the calculation click on one of the...

Страница 26: ...eted all fields of the weather data and having selected the en gine type you can press the white CALCULATE button on the bottom of your screen to find out the suitable jet for your engine type and env...

Страница 27: ...e 4 Now the recommended main jet value will be provided In case a second calculation needs to be made you can start over by simply pressing the button saying RESET next to the calculated value Effecti...

Страница 28: ...space next to Temperature Altitude Atmos Pressure and Humidity you are able to enter the required information In terms of Atmos Pressure the atmospheric pressure at sea level has to be entered usually...

Страница 29: ...nce users can decide if they would like to use the metric or the imperial system You can change between Celsius and Fahrenheit by simply clicking on the small C or F next to the value for temperature...

Страница 30: ...Figure 3 7 Please scan the following QR code for a detailed instruction video Figure 3 8 QR code App Download Please scan the following QR code for your mobile device 3 Page 10 Edition March 01 2021 E...

Страница 31: ...understanding and as help for carburetor adjustment the following figure de scribes the effect of the various adjustments depending on the throttle position Figure 3 11 Various adjustments ___________...

Страница 32: ...ammable and explosive under certain conditions m WARNING Risk of fire and explosion Make sure that fuel will not splash onto hot engine components or equipment Always wipe off any fuel spillage from t...

Страница 33: ...n and fit the corresponding main jet see ROTAX Max Jetting Guide 5 Fit and hand tighten the plug screw pos 27 and gasket ring pos 26 Needle position 1 2 3 4 5 K00403 9 8 10 11 7 5 4 3 6 2 1 12 13 14 1...

Страница 34: ...nlet 8 Refit the fuel filter pos 32 the gasket ring pos 33 and hex screw pos 34 NOTE When trying to start the engine it will take a few seconds for the fuel pump to fill the float chamber and for the...

Страница 35: ...d 12 200 rpm is essentially higher than be tween 12 200 and 13 600 rpm Therefore it does not always make sense to use this rpm range high top speed on a straight and to not take advantage of the accel...

Страница 36: ...of primary drive gear Number of teeth of secondary drive gear Gear ratio Traditional gear ratio in sprocket size Theoretical max speed in km h mile h at 12 500 rpm and wheel diameter 870 mm 34 25 in...

Страница 37: ...ry and secondary gears please note that the sum of the last digits of the teeth number must always be 7 or 17 35 62 EXCHANGE OF GEAR REDUCTION RATIO Tools required Torque wrench Allen key 5 mm Allen k...

Страница 38: ...ear pos 4 and secondary gear pos 5 and fit the gear pair of your choice NOTE At re assembly proceed in reverse sequence Tighten the screws to the following torque settings M6 10 Nm 88 lbf in M8 22 Nm...

Страница 39: ...the gear shifting is very simple only some points have to be observed Engagement of the 1st gear ATTENTION It is prohibited to rev the engine up in idle mode in order to change engage the 1st gear Thi...

Страница 40: ...adjustment of gear shifting please follow the instruction of the chassis manufacturer NOTE If the gearshift cables are excessively tensioned the gears are hard to shift 2 The distance between shift co...

Страница 41: ...BRP Rotax Operators Manual Figure 3 15 Adjusted Effectivity 125 MAX DD2 evo 3 Page 21 Edition March 01 2021...

Страница 42: ...Page 22 Edition March 01 2021 Effectivity 125 MAX DD2 evo NOTES BRP Rotax Operators Manual...

Страница 43: ...RATION TOPICS IN THIS CHAPTER ENGINE OPERATING 2 Engine start 2 Stopping the engine 4 Setting of the exhaust valve timing 5 Maintenance schedule for engine components 8 Operating Limits 10 Effectivity...

Страница 44: ...ons it s recommended to put the shifting device in Neutral no gear engaged At engine start proceed as follows Step Procedure 1 On a cold engine pull the choke lever pos 1 into a vertical position Figu...

Страница 45: ...ately after kart operation Risk of burning m WARNING Non compliance can result in serious injuries or death During kart operation beware of any contact of body or clothing with moving parts of the kar...

Страница 46: ...f the kart if engine is not running ______________________________________________________ STOPPING THE ENGINE See Fig Power button Step Procedure 1 Press the power button and the engine will stop NOT...

Страница 47: ...nected This is important for the general function of the engine Variant 1 Additional cable on battery ground A See Ground wire The additional cable is NOTattached to the ground wire The control of the...

Страница 48: ...lve timing is activated at 9100 rpm NOTE Isolate the additional cable with an electrical insulating tape to the ground wire so that a possible contact with the engine ground does not affect the functi...

Страница 49: ...nual Figure 4 5 Cable on starter relay NOTE Either variant 1 or variant 2 has been installed in your engine ______________________________________________________ Effectivity 125 MAX DD2 evo 4 Page 7...

Страница 50: ...valve and check if moving freely X Check overflow bottle empty if needed X Tear down inspection of engine must be con ducted by an authorized ROTAX Service Center X Inspect following com ponents and...

Страница 51: ...ust system X Check fit and tightness of exhaust X Inspect for oil or water on the leakage bore at the crankcase X right after every collision Verify a tight fit and non leakage of radiator hoses and c...

Страница 52: ...um specified operating temperature due to the low ambient temperature then the cooling efficiency of the radiator must be reduced by partially covering the radiator with adhesive tape ATTENTION Non co...

Страница 53: ...ESERVATION AND TRANSPORT TOPICS IN THIS CHAPTER Preservation and transport 2 Preservation of engine and equipment 2 Transport of the kart 2 IMPORTANT INFORMATION SUMMARY 3 Notes 4 Effectivity 125 MAX...

Страница 54: ...tem to prevent corrosion 5 Remove battery from the fixture and charge periodically with the specified battery charger ______________________________________________________ TRANSPORT OF THE KART If th...

Страница 55: ...sp 91 MOZ 2 STROKE OIL Fully synthetic XPS Kart Tec OIL IN FUEL MIX ING RATIO During break in 1 33 3 oil During normal use 1 50 2 oil COOLING SYSTEM 0 90 0 237 Pure water resp antifreeze if kart is st...

Страница 56: ..._____ ________________________________________________________________________________ ________________________________________________________________________________ ________________________________...

Страница 57: ...Assistant ESA 4 Engine calibration 2 Engine operating 2 Engine operation 1 Engine start 2 Exchange of gear reduction ratio 17 Exhaust system 4 F Fuel 6 Fuel pump 4 G Gearbox 4 General 2 I Ignition un...

Страница 58: ......

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