Tomos FLEXER 45, YOUNGST'R User Manual
FLEXER
USER’S MANUAL
NAvodiLo zA UpoRAbo
HANdbUCH
1
TOMOS
USER'S M ANUAL
FLEXER 45
2
CONTENTS
Warnings 3
Riding Safety Tips 3
Technical Specification 4-5
Technical Description 6-9
Vehicle operation 10
Fuel 10
Engine Starting 10
Riding 12
Engine Running-In 12
Maintenance 13
Maintenance Operations 13
Lubricants 13
Gearbox Oil change 13
Fuse Replacement 14
Cleaning 14
Fuel System Cleaning 14
Exhaust System Cleaning 15
Vehicle Cleaning 16
Checks and Adj ustm ents 16
Engine Oil Level Check 16
Bowden Adjustment 16
Transmission Chain Adjustment 17
Bolt and Nut Tightness 17
Maintenance Schedule 18
Battery Installatio n 19
Troubleshooting 20
Fuel System Troubles 20
Ignition System Troubles 20
Troubles Causing Reduced Engine Power 20
Gearbox Troubles 21
Electrical System Diagram 22
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WARNINGS
Prior to operating the vehicle, carefully read this User's Manual in order
to get acquainted with its operational characteristics and safe and
proper operation.
1. Fuel i s extremely flammable and explosive; therefore it requires
special handling precautions:
- Stop the engine prior to refilling the tank;
- Fill the tank outdoors; never approach the tank with a lit cigarette,
open flame or s parks; and
- Thoroughly wipe off any spilled fuel
2. The engine should not be run in an enclosed space or nearby
entrances to lower-level areas (cellars etc.). Engine exhaust gases are
toxic and denser th an normal atmospheric air.
3. When starting or running the engine, never touch the ignition coil,
high voltage cable, ignition spark plug cap or other parts of the
electrical system.
4. The vehicle is equipped with a catalysts exhaust system causing
high temperatures. When the engine is running and for some time after
it has stopped do not touch its hot parts: the cylinder, the cyli nder
head, exhaust silencer. Do not touch the brake components too.
5. When the engine is running beware of the engine’s rotating parts.
No modification of the vehicle, stripping-of f any parts or installi ng nonoriginal spare parts is permitted. The vehicle owner is specifical ly
warned that any modification to the exhaust system can only result in
the vehicle’s deteriorated operation, without any positive effects on
engine performance and causes higher air pollution.
RIDING SAFETY TIPS
Rid ing a twowheeler i s simple, yet it req uires some skills and exper ience
whi ch can onl y be accumulated progressively. P rior to each ride,
obse rve the following rules:
1. Check the proper functioning of all vehicle assemblies.
2. When riding, wear li ght-colored, preferably light-reflective clothes; ride
with your lights on; avoid riding in other drivers “blind spots” to prevent
danger of other drivers “overlooking” you.
3. Abide by all traffic regulations; above all, adjust your riding speed to
the road conditions and your skill level.
4. Do not hand th e vehicle over to an y inexperience riders.
5. Prior to changing lanes, al ways check that this can be done safely,
and signal your intention in time Be careful when riding trough road
crossings or passing o t her vehicles (i ncluding parked vehicles)..
6. Always ride with your helmet on, be properly dressed and wear boots.
7. Pay due the attention to what is going on in front of you and behind
you (rear mirror) and try to anticipate events
8. The braking affects the loading on each wheel: the front braking
increases; whereas braking with the r ear brake only increases th e
braking distance while also reducing vehicle stability; hence use the rear
brake with caution.
4
TECHNICAL SPECIFICATIONS
Model Flexer 45
Variants A24B – 45km/h
A24C – 30km/h
A24D – 25km/h
A24E – 20km/h
Engine Type single-cylinder, two-stroke
air-cooled
Displacement 49 cm3
Cylinder bore di ameter 38 mm
Pist on stroke 43 mm
V ARIANT A24B:
Compression ratio 10 : 1
Engine power 1,7 kW at 4800 min-1
Torque 3,6 Nm at 3500 min-1
Maximum speed 45 km/h
Fuel consumption 1,8/100km
V ARIANT A24C:
Compression ratio 6 : 1
Engine power 1,0 kW at 3500 min-1
Torque 3,1 Nm at 2500 min-1
Maximum speed 30 km/h
Fuel consumption 2,2/100km
V ARIANT A24D:
Compression ratio 6 : 1
Engine power 1,0 kW at 3500 min-1
Torque 3,1 Nm at 2500 min-1
Maximum speed 25 km/h
Fuel consumption 2,5/100km
V ARIANT A24E:
Compression ratio 6 : 1
Engine power 1,0 kW at 3500 min-1
Torque 3,1 Nm at 2500 min-1
Maximum speed 20 km/h
Fuel consumption 2,8/100km
Starter Elect ric (versi on) 12V 170W
Kick-starter or pedals
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Fuel Tank capacity 3,5 l (incl.0,5 l re serve)
Engine oil reservoir 800 cm3
Suspension Front forks travel 70 mm
Rear shock absorber travel 35 mm
Wheels Front tire dimensions 2 ½ -16
Rear tire dimensions 2 ½ -16
Front tire inflation pressure 2,2 bar
Rear tire inflation pressure 2,2 bar
Electrical Magneto 12V 80W
system Spark advance preset
Spark plug-A24B Bosna F75, BOSCH-W7AC
Spark plug-A24C, A24D,
A24E Bosna F75, Champion-L86
Spark plug electrode clear. 0,8 mm
Headlight 12V 25W/25W + 12V/4W
Tail light 12V 5W
Stop light 12V 15W
Speedometer illum inat io n 12V 2W
Direction indicators (version) 12V 10W
Direction indicator signal light 12V 1,5W
Oil le vel signa l l ight 12V 1,5W
Low beam signal light 12V 1,5W
Main beam signal light 12V 1,5W
Battery (version) 12V 4Ah
Fuse (version) 8A
Dimensions Wheelbase 1.080 mm
And weights Total length of vehicle 1.640 mm
Vehicle mass (empty fuel tank) 59 +3 kg
Maximum permitted total weight 160 kg
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TECHNICAL DESCRIPTION
1. Rear brake lever
2. Direction indicat or switc h (versio n)
3. Horn switch
4. Main beam/low beam switch
5. Speedometer
6. STOP switch
7. Electric start pushbutton (version)
8. Throttle lever
9. Front brake lever
10. Direction indicator signal light (version)
11. Oil le vel signa l li ght (versi on)
12. Main beam signal light
13. Low beam signal li ght
14. Luggage carrier
15. Engine oil reservoir, cap (version)
16. Battery (version)
17. Contact key lock-left side (version)
18. Fuel filling vent
19. Fuse (version)
20. Air filter
21. Carburetor, choke
22. Fuel petcock
23. Oil pump
24. Fuel tank cap
25. Steering lock
26. Kick starter lever or pedals
27. Chain tension adjuster
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