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Derbi GPR 50cc 6 Speed Engine Manual

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DIMENSIONS
OVERALL LENGTH (mm.) .............2,035
OVERALL WIDTH (mm.)................800 ( R ) / 760 ( SM )
OVERALL HEIGHT (mm.) ..............1,220
WHEEL BASE (mm.)......................1,355
FRAME RSM
FRAME TYPE......................................................................................Perimeter
FRONT SUSPENSION: TYPE........................................PAIOLI conventional hydraulic forks
FRONT SUSPENSION: STROKE / BAR DIAMETER
...190 mm. / 36 mm.........170 mm. / 36 mm.
FRONT SUSPENSION: FORK BAR OIL CAPACITY
....285 cc SAE 10W ........270 cc SAE 10W
REAR SUSPENSION: TYPE / STROKE .....................Single in-line shock absorber / 180 mm.
STEERING ANGLE...............................................................26º..............................24.7º
FRONT TYRE: SIZE ........................................................80/90x21” ...................100/80x17”
FRONT TYRE PRESSURE..............................................1.0 to 1.1......................1.7 to 1.8
REAR TYRE: SIZE .........................................................110/80x18”...................130/80x17”
REAR TYRE PRESSURE ................................................1.2 to 1.3......................2.0 to 2.1
FRONT BRAKE: TYPE / SIZE.................................
Hydraulic Disc 240 mm......Hydraulic Disc 260 mm.
REAR BRAKE: TYPE / SIZE ....................................................Hydraulic Disc 180 mm.
TOTAL CAPACITY, FUEL TANK...........................................................7.0 litres
TOTAL CAPACITY, OIL RESERVOIR ...................................................1.0 litre
COOLING LIQUID CAPACITY .............................................................0.85 litre
ENGINE
OPERATING CYCLE..........................................................................Two Stroke
BORE x STROKE............................................................................39.86 x 40 mm.
NUMBER OF CYLINDERS ......................................................................One
TOTAL CUBIC CAPACITY ....................................................................49.9 cc
MAXIMUM POWER.....................................................................8.5 CV at 9,000 rpm
FUEL......................................................................................Unleaded petrol 95 Octane
COMPRESSION RATIO ..........................................................................13:1
ADMISSION SYSTEM .......................................................................Reed valve
STARTER SYSTEM ...........................................................................Kick starter
LUBRICATION SYSTEM......................................................................Oil pump
COOLING SYSTEM...................................................Liquid with pump, radiator, and thermostat
CARBURETTOR
BRAND / TYPE............................................................................Dell-Orto / PHVA 14
ENGINE IDLE SPEED .......................................................................1,900 ± 100
TURNS IDLE JET AIR SCREW...............................................................23/4
DIFFUSER DIAMETER ........................................................................14 mm.
# IDLE JET ..............................................................................................#32
# MAIN JET .............................................................................................#71
CONICAL NEEDLE: TYPE / STD. ADJUSTMENT ...............................A11/4th
SLIDE VALVE ...........................................................................................#30
# EMULSIFIER TUBE...........................................................................#211GA
CHOKE TYPE..................................................................................MECHANICAL
# CHOKE JET...........................................................................................#45
FLOAT ....................................................................................................3.5 gr.
1-5
GENERAL TECHNICAL SPECIFICATIONS
XTREME MODELS
… 8 …


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  • Were does the vacuum pipe from the tank conect to on the carburettor Submitted on 24-3-2022 at 09:43

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