Manurhin Owners Manual. English
Contents
1. C d e f Bad spark plug cable connection Spark plug cable broken or bad insulation interrupter point does not open or is stuck Interrupter points dirty or burned out Condenser damaged or wet Distributor stuck Spark shows between cable and ground but not in spark plug when removed and placed on cylinder head an oe Space too wide between electrodes Carbon on electrodes Spark plug insulation broken or wet Spark plug wet or oily Motor starts with difficulty cold a b Idling speed too slow Air entering motor see service agent Motor starts with difficulty hot a b Choke closed Carburetor at angle OMR O EO IV VER ea an m MW kd Float valve does not close properly carburetor flooded Float leaks 2 MOTOR SKIPS Air filter dirty or badly placed in rubber intake tube Float valve worn Needle valve worn Float damaged Too much oil in the gasoline oil mixture Spark too advanced or retarded Carbon on exhaust or intake ports Muffler blocked or damaged Bad carburetor adjustment Spark plug too hot 3 BACK FIRING Bad fuel flow Carburetor inclined Bad cylinder head gasket too much air in mixture Air filter lacking Bad carburetor adjustment Incorrect interrupter point spacing Spark plug loose or worn Bad spacing of spark plug electrodes Faulty condenser 31 Damaged spark plug cabl2. r D PARTEMENT SCOOTER 1 boul Malesherbes Paris 8 Usine Mulhouse Bourtzwiller www manurhinscooter co uk IMPORTANT REMARKS Never run motor on pure gasoline i it is absolutely necessary to add 5 oil during the breaking in period and 4 there after Ve a Do not forget to have the first check up S k done at 200 miles and the second at 1 000 AA Use only original parts as they are carefully l f made and rigidly inspected INDE X Page 4 k i Technical characteristics 2 5 y ai D DONATOR rasa sa ka a innes _ MR yee 5 8 9 First ride suggestions E O o st 10 12 Lf D Upkann Se MODNA on ccc nnccncccncnenssuucn 12 17 zah Technica Details cccccscccncascescsccccccases 18 25 Regulating unassembling assembling 25 29 a Troubles and their remedies 29 32 A You have just purchased a Manurhin Scooter Whether you are a beginner or a seasoned motorcycle or a scooter rider it is in your own interest to read this pamphlet Read this first and you will find that your first ride is made simple and easy The motor was designed by the well known DKW firm win long years of experience and the automatic transmission nown as a Variator is made under UHER license KL gt COMPLETE INFORMATION ON MANURHIN SCOOTER 1 GENERAL Frame steel t
3. thoroughly put several drops of oil on the surface and assemble Be sure the filter is properly placed in its socket Replace intake tube motor end first ji i Blown up view Manurhin 2 cycle motor 4 To regulate carburetor a The richness of the mixture is regulated by the needle valve see p 22 b Idling speed is regulated by screw n 11 clockwise to increase speed If this does not change the idling speed the throttle cable is too tight loosen the hollow nut after loosening the set screw Regulate idling speed when motor is hot ll IGNITION The high tension current for the spark plug is furnished by the fly wheel magneto Clean spark plug frequently preferably with a steel brush using wrench in tool kit supplied with scooter Check spacing of points 016 02 in 4 5 mm the thickness of a post card Never touch the central electrode ll IGNITION The headlight has three intensities 1 Country a Very bright b Bright 2 City Tail light Current is furnished by the magneto THE MOTOR v f 8 aX 7 a a 24 wv 4 7 fi LA 5 O 5 i DT RANA TECHNICAL DETAILS MOTOR A two cycle motor is the ideal type for a scooter the motor in the Manurhin scooter was carefully studied for this particular machine While it has only a piston displacement of 4 577 cu in 75 cc it furnishes plenty of power due to its efficient design a
4. 0 ft 3 m 7 BRAKING Type Drums front 4 9 in 125 mm rear 3 11 in 105 mm contact width 0 8 in 20 mm Location of brake controls Front brake by hand lever at right end of handlebar cable control rear brake foot pedal in floor board both brakes regulation by screw and lock nut 8 FRAME Welded steel tube Length 6 ft 7 5 in 1 960 m Width 2 ft 2 37 in 0 670 m 9 LIGHTING Standard headlight ABTP 494 centered at 30 in 770 mm from ground or loaded weight 28 in 0 750 mm Headlight has three intensities 1 Country a Very bright b Bright 2 City dim tail light 12 volts 10 MISCELLANEOUS Horn 12 volts Series no right side of frame above front mudguard Motor no on crank case below carburetor Manufacturers plate under saddle Registration plate location rear of motor and rear wheel housing 13 330 m from ground Rear view mirror on handlebar 3 CONTROLS 1 Gasoline shut off Open cover at front of motor housing by pressing on button and turning wing down to open to left to close to right for reserve supply 2 Choke To choke cold motor when starting raise the little lever found under cover noted above The lever will automatically return to normal position Never choke when motor is hot 3 Clutch lever located at left of handlebar Use only when starting or stopping as the automatic transmission n
5. 12 aca ee grease Guide tube for clutch control cable oil Telescopic front fork grease springs s d sliding tubes z ue NE grease speedometer drive grease Front brake cam and hub grease POOL pedal HOMME ir nee grease Flywheel magneto oil hole oniyi 4 E ON CTOBS OI res Rear hub and brake cam Mileage 1 200 1 200 1 800 1 800 1 200 600 3 600 _ 1 200 1 200 1 200 7 200 1 200 3 600 1 200 7 200 1 200 6 000 7 200 MANURHIN Scooter Lubrication Plan e STANU o mi MA aay ti ko so A Li
6. On the magneto stator are attached two 12 volt 30 Watt coils The left coil for lights and horn alternat ing current and the one on the right which furnishes t the high tension current for the ignition The interrupter is cam operated and opens once for every turn of the rotor One point is the ground the other wired to coil and condenser Low speed REGULATING UNASSEMBLING AND ASSEMBLING 1956 Vode M ce 1 TRANSMISSION V BELT Changing this V belt is easy 1 To remove belt see fig C High speed Remove two cap screws holding motor and rear wheel housing and swing forward against handlebars 2 m z m O da v T 5 E o mee lt Release clutch hand lever Disconnect cable from yoke on driving or lower pulley remove cotter pin remove pin then yoke Fig A Driven pulley upper place hands as in Fig B push against spring disc to force pulley faces apart the belt is now loose and can be removed from driven pulley as in Fig C turning to the right Then remove from driving pulley Figure A Unassembling clutch yoke Figure C Removing belt by separating driven pulley faces and turning to right t 2 To install belt see Fig D note the arrow on belt should point to the rear Begin with driving lower pulley placing belt as in Fig D Assemble yoke and place clutch hand lever in Figure B Pressure of thurnbs to r
7. ce the gas by turning the throttle grip backward the larger the throttle opening and the more fuel enters the mixing chamber 8 Screw n 11 regulates the idling speed turning to the right to increase idling speed as the throttle valve rests on the tapered end of this screw The choke is n 12 in the figure AUTOMATIC SPEED CHANGING SYSTEM This is the only two wheeled motor vehicle with the UHER automatic speed changing system Once the scooter is underway this automatic transmission takes care of all road conditions just as in a modern auto mobile with automatic transmission Functioning is as follows The principal part of the automatic transmission is a V belt running on two pulleys with separable faces The driving pulley is mounted on the crankshaft has two conic faces the inner one fixed the outer movable controlled by inertia blocks working by centrifugal force When the motor is idling the V belt rests on a needle bearing sleeve at the center of the driving pulley As the motor speed is increased with the throttle the inertia blocks cause the movable face to approach the other face and the belt moves outward toward the periphery As the belt is unstretchable and as the distance between centers of the pulleys remains constant the belt forces 20 e a SIM gt om MJ gt x a Headlight 5 Connection plate 4 connec Light and ignition switch 6 Connection plate 2
8. connec combined Na di Flywheel mogneto 12 voit 7 Pail light and rear number plate 29 watt Horn 8 Spark plug a o a VAS a 2 4 lt 5 1 4 4 _ gt Sla _ r a Carburetor gross section s Sh epi rare i 4 k 44 the faces of the driven pulley apart against a spring Ihe belt approaches the center as the bearing circumference of the belt becomes smaller and you are in a higher gear The delicate balance between the centrifugal force of the inertia blocks on the driving pulley and the strength of the spring on the driven pulley along with the belt tension means that this transmission reacts automatically to all throttle and road demands NEUTRAL When the clutch hand lever is closed and latched the scooter is in neutral and the driving pulley runs free the belt resting on the pulley sleeve To push the scooter keep lever in closed position but when scooter lt lt LEGEND 1 Fuel entry 10 Needle valve 2 Fuel filter 11 Idling screw sam chamber ie Due a 13 Throttle lever 5 Float valve 6 jet 14 Carburetor top section 7 Venturi tube 15 Choke valve 8 Mixing chamber 16 Throttle spring 9 Throttle vaive is on stand and motor not running release clutch hand lever j ELECTRIC INSTALLATION
9. e The rear wheel foot brake is located at right side of floor board 8 Throttle grip A rubber grip at right of handle bar controls amount of gas mixture entering carburetor Turn to rear to accelerate forward to decelerate Once the clutch lever is engaged all speed is controlled by the throttle grip exactly as on an American car with automatic transmission When motor is idling don t accelerate when clutch lever is engaged unless about to start 9 Hand brake on right of handlebar brakes front wheel ADVICE ON BREAKING IN Although all parts in the Manurhin scooter are precision work and no breaking in period is really necessary it is advisable to limit speed to 30 mph for the first 100 miles then 40 for the next 150 miles And dont forget the 200 mile and 1 000 mile check ups Even after several hundred miles we suggest that you only open the gas three quarters of the way Motor assembly and rear suspension THE FIRST RIDE After you have familiarized yourself with the various controls be sure that the gas tank is full tire pressure correct and brakes and lights working To fill the reservoir swing the saddle forward Be sure to fill with a mixture of gasoline with 4 to 5 cylinder oil And don t leave the motor running or smoke nearby when filling the tank It is well to protect the opening when filling when rain is falling The tire pressure is important given
10. e Interrupter points stuck or spring broken m Interrupter points burned or dirty x ETNA me ON IV LS ga 7 0 Gist oe Piston rings damaged worn or gummy 4 MOTOR WILL NOT RUN FAST Interrupter points open too far Interrupter point stuck Fuel tube or carburetor dirty Too much carbon in motor or muffler V belt loose or worn Air filter dirty or plugged Spark too retarded Brakes do not release entirely Motor cooling fins covered with dirt overheated motor Incorrect gasoline oil mixture 5 MOTOR STOPS SUDDENLY Empty fuel tank Gasoline filter or needle valve plugged Spark plug cable not attached to spark plug Faulty or dirty spark plug Faulty contact or bad interrupter points High tension coil burned out Faulty condenser IMPRIMERIE STRASBOURGEOISE lt S gt 15 RUE DES JUIFS STRASBOURG LUBRICATION DIRECTIONS No on Plan sma Lubric Lubrication Points ation Starter cable drum spindle grease Starter cable and return pulley pin oil Drain reduction gear housing when PO mee ice AE SA v a es Fill reduction gear housing 4 5 cu in oil Secondary driven pulley grease BEGEK Un Ball bearing clutch release grease Primary driving pulley needle bearing grease K CUKA FOND PIN svi oil Clutch hand lever joint and cable oil Fredi brake hand lever joint and cable oil EOE DA OST NGS 2
11. eeds no clutching action to change speeds Simply release lever slowly when you start and close lever when motor is idling 15 Fuel Peteock Turn down to open left to close right for reserve supply CONTROLS OD OO N A MM Z U va a V 12 13 14 15 16 17 18 19 Clutch hand lever Clutch hand lever release Horn button Ignition and light switch Speedometer Briefcase hook Fork lock Stand lateral Starter handle Saddle catch Motor and rear wheel cover cap screw 2 Front brake hand lever Rear brake pedal Cover carburetor gasoline shut off and spark plug Gasoline shut off Spark plug Carburetor air adjustment Gasoline filler cap Tool kit space These drawings show various controls me thods of utilization on following pages 4 Switch The switch is located beside clutch lever Turn to right to stop motor The same switch controls the three intensities of lights Press down on button for horn 5 Starter On left side near bottom of motor housing To work this hand starter when seated on the scooter simply pull on the handle to about the height of the saddle Don t use starter when standing erect as you may pull the cable out too far and injure it 6 Stand Depress the lateral stand with the foot and this holds the scooter upright To release stand push backward on stand with the foot 7 Foot Brak
12. emove V belt locked position to allow belt to rest on sleeve 26 27 Place belt on driven upper pulley the reverse of removing belt Check yoke to be sure that pin and cotter pin are in place then replace motor housing Note Always keep belt free from grease cil or fuel from the tank Figure D Installing belt on driving pulley Il WHEELS AND TIRES It is very rare to have a flat tire If this should occur it is better to remove the wheel then repair tire 1 Front wheel Remove brake cable head after pushing brake lever toward rear Remove speedometer drive Remove the two wheel axle nuts with wrench supplied in tool kit Rear wheel Raise motor and wheel housing as described pre viously Remove the hex nut at left end of axle holding the axle if necessary with a screw driver in the hole at the right end Withdraw axle from right side with the aid of screw driver dr MOTOR TROUBLES AND REMEDIES The MANURHIN scooter is very simple and sturdy With proper care it should give no trouble However nothing is perfect and in case of trouble following are some suggestions 1 MOTOR DOES NOT START A Fuel does not arrive in carburetor a Empty tank b Petcock closed or plugged c Filter plugged at carburetor d e Filter plugged at gas tank Needle valve blocked No spark shown when you hold spark plug cable near ground turning motor by hand a b
13. here both in kilos per sq centimeter and Ibs per sq in Solo Duo eo Pee eee 1 3 Kilos 18 Ibs 1 3 Kilos 18 Ibs LL oe ee 1 6 23 Ibs 2 25 32 Ibs UTILIZATION A TO START MOTOR Sit on saddle Be sure that the light switch is at 0 Be sure that clutch control lever is closed and catch engaged Open gasoline petcock Raise choke for cold motor only Open gas about 1 4 toward rear Pull starter handle The motor should start at the first or second pull 10 B TO START SCOOTER Be sure to raise stand completely Close clutch lever completely to release catch then release lever slowly at the same time advancing gas slowly The scooter should start off smoothly afterward as there are no gears to shift all that is necessary is to advance or retard the gas The automatic speed changer will take care of all speeds and all grades automatically If you should stall on starting off probably you have let the clutch lever out too fast or you have not accelerated enough When the motor is very cold pull on the starter handle 4 or 5 times with the switch off Then turn on switch and the motor should start at the first pull C BRAKING Don t forget that the automatic transmission has an excellent braking effect when you cut the gas For additional braking the hand brake front wheel is preferred For a sudden stop apply both hand and foo
14. nd to the automatic transmission The motor is eguipped with a dome top piston and a Schnurle type blower for cooling mounted on the flywheel magneto The starter cable is wound on a drum mounted also on the magneto housing All parts are heavy duty including the heavy aluminum transmission housing The crankshaft is mounted on two sets of ball bearings and the lower connecting rod end has a roller bearing The cylinder is of grey cast iron the piston and cylinder head of aluminium alloy The flywheel magneto generates a 12 volt alternating current for ignition and lighting This magneto of heavy solid construction acts as a flywheel and the turbine blades of the blower are integral with it For wiring design see figure page 21 CARBURETOR This is of the Bing type model 4 14 1 When petcock is opened fuel flows into the constant level bowl 3 18 via the brass connection 1 containing a strainer 2 The flow is regulated by a float value 5 controlled by float 4 Fuel then passes through the vertical jet 6 into Venturi tube 7 As piston descends partial vacuum is created in the cylinder and the fuel is then drawn into the mixing chamber at the same time that air enters from air intake forming a mixture in chamber 8 The quantity of fuel mixture entering motor is regu lated by the size of throttle opening 9 actuated by lever 13 as well as by the position of needle value 10 The more you advan
15. t brakes On a long downgrade use first one brake and then the other to avoid heating the brakes We recommend going slowly on wet icy or sandy roads 11 D TO STOP Do not close clutch hand lever when you are going fast It is difficult to do and it wears out moving clutch parts To stop motor open switch UPKEEP OF THE MANURHIN SCOOTER Proper performance depends on proper care We recommend service and repair work by our regular agents as well as the two periodic check ups For those who wish to care for their own scooters outside the two check ups we give hereby some direc tions L FUEL SUPPLY 1 Gasoline filter at carburetor This thimble shaped filter is located at the connection of the gas line to the carburetor Remove filter and blow impurities out 2 Gasoline filter at tank If gas runs feebly from tube to carburetor with petcock open with the tube disconnected from carburetor the petcock open and the tank filler cap removed blow into the tube at the open end This is only a temporary remedy The tube filter and tank should be cleaned if impurities exist 12 Use of hand starter 13 3 Carburetor air filter This air filter is located inside the flexible rubber intake tube It should be cleaned from time to time particularly under dusty or sandy conditions Remove intake tube remove filter place in gasoline in a recep tacle and clean with a brush Dry
16. ubing cold formed and electrically welded Motor mounted directly on frame 2 DIMENSIONS AND WEIGHTS Wheelbase 4 ft 5 15 in or 1 350 meters General Length 6 ft 7 5 in or 1 960 m width 2 ft 3 in or 0 670 m Clearance 7 08 in or 0 180 m Weight frame work 35 27 Ibs or 16 kos Weight complete scooter 176 37 Ibs or 80 kg 3 MOTOR Type 2 cycle one cylinder at 55 angle Bore 1 77 in 45 mm stroke 1 85 in 47 mm 2 Displacement 4 52 cu in 74 cm Compression rate 6 1 Power French fiscal rating 1 h p U S 3 h p Fuel mixture gasoline cylinder oil 4 9 Tank capacity 1 70 U S gallons 6 5 liters under seat Maximum r p m 5 000 Carburetor Bing 4 14 1 Ignition magneto fixed spark advance Electric equipment 12 volts 30 Watts Motor lubrication motor oil mixed with gasoline Cooling Air turbine blower 4 TRANSMISSION OF POWER Clutch controlled by movable faces of driven pulley Automatic transmission V belt drive from driving to driven pulley each having movable faces to coun tershaft with bevel gears driving Chain to rear wheel sprocket Speed up to 40 miles 65 km per hour at 5 000 rpm Tires 2 75 x 16 Speedometer flexible shaft from front wheel to dial on handle bars 5 SUSPENSION Front telescopic fork Rear swinging arms rubber shock absorbers 6 STEERING Type Fork with handlebars direct Turning radius 1
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