Service manual

INTRODUCTION
The Minibike Origami B1 is designed and built for use on a paved closed circuit
track. The track should be clean and without obstacles of any kind. Qualified
adults and younger persons can drive the minibike. Children can drive the
minibike only under the supervision of a responsible adult person. The
minibike is constructed especially for racing competitions on special racing
tracks. Minibike Blata should not be used during winter season and under bad
weather conditions. Usage under these conditions leads to abnormal
mechanical wear and corrosion of most minibike parts - especially those
directly exposed to climatic influences. Beside that, riding under these
conditions increase the risk of injury or health damage.
The minibike uses a single-cylinder two-stroke, Gasoline combustion engine,
and has an air filter and exhaust silencer. Transfer of power to the rear wheel is
through a drive chain. The overall drive ratio to the rear wheel can be changed
by the replacement of chain sprockets. The front and rear wheel is equipped
with disk brakes. The rear brake is controlled with the left lever and the front
brake is controlled with the right lever on the handlebars.
BASIC TECHNICAL DATA
ENGINE: BLATA…………………………….………………………TWO-STROKE
NUMBER OF CYLINDERS................................................................ 1
CYLINDER CAPACITY …………………………….. .........39,8 cc
ENGINE COOLING SYSTEM………………………..LIQUID COOLED
POWER OUTPUT...........................................8,75 kW at 11 000 rpm
TORQUE ………………………………...............7,7 Nm at 10 300 rpm
CARBURETOR .............................................PHVB 19 DELL’ ORTO
FUEL ADMISION …………REED VALVE DIRECT TO CRANKCASE
IGNITION ................................................................. CONTACT-LESS
SPARK PLUG…………………….................................... NGK B9EGV
STARTING...........................................HAND PULL TYPE, MANUAL
CLUTCH .............................................. CENTRIFUGAL AUTOMATIC
FRAME
: ENHANCED TRELLIS…………….. SUPPORTING STRUCTURES
MADE OF LIGHT ALLOYS
BRAKES
: FRONT WHEEL... DISC BRAKE – DISC DIAMETER 162mm ( 6,3”)
REAR WHEEL........ DISC BRAKE-DISC DIAMETER 119 mm ( 4,7”)
WHEELS: FRONT............................................OF LIGHT ALLOY 2,1”x 6,5”- 99
REAR............................................OF LIGHT ALLOY 2,1”x 6,5”- 130
TIRE: FRONT..................................................................... SIZE 90/65 - 6,5”
REAR......................................................... 110/50 - 6,5”, 90/65 - 6,5”
FUEL: MIXTURE OF 95÷98 OCTANE PETROL + 2 STROKE SYNTHETIC
OIL
MIXING RATIO (after break in period) ......................................33: 1
TANK CAPACITY........................................... 1,5 Liter 0,39 US gal. )
UNLOADED WEIGHT:.............................................................. 26,5 kg ( 58,3 lb. )
CARRYING CAPACITY: .............................................................. 110 kg ( 242 lb. )
BASIC DIMENSIONS:
L x W x H ………….1 100 mm(41”) x 560mm (22“) x 550mm (21,6”)
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