Manufacturer Address TAG Engine#

TAG Racing InternationalEngine Specification Form

125cc TAG Engine

Manufacturer COMER S.p.A.Make COMERModel K365Inlet typeNumber of pages

PICTURE OF ENGINE

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Official Signature and Stamp

Importer

TECHNICAL INFORMATION

A CHARACTERISTICSMeasurement Tolerances

Volume of cylinder 125cc. maxOriginal bore 54.02 mmTheoretical maximum bore 54.27 mmStroke 54.00 +/- 0.05Cooling system WaterNumber of carburation systems 1Number of transfer ports / ducts,cylinder / sump

3

Number of exhaust ports / ducts 1+n¡2 boostersShape of the combustion chamberLength between axes of theconnecting rod

102 mm +/- 0.03 mm

Minimum weight of connecting rod 112 gr +/- 2%Volume of combustion chamber 12.5 c.c. minimumType of bearings and size Big End of Con. Rod Bearing = 18 X 24 X 15

Little End of Con. Rod Bearing = 14 X 18 X 17Crankshaft Bearing = 25 X 52 X 15

B OPENING ANGLESExhaustOf exhaust ports / ducts

C LIST OF ACCESSORIES INCLUDED(List accessories as shown below) Centrifugal clutchCarburetor with butterfly ∅24 MIK COMER

Electric starterExhaust with flex

D MATERIALCylinder ALLUMINIUMConnecting rod STEELCrankshaft STEELHead ALLUMINIUMLiner CAST IRONCrankcase ALLUMINIUMPiston ALLUMINIUMPiston Ring CAST IRON CROMED

DRAWING OF THE CYLINDER DEVELOPMENT

Chord readingB = 51.9 mm (Tolerance = – 0.3 mm

C1 = C2 = 26.8 mm (Tolerance = – 0.3 mm)C3 = 28 mm (Tolerance = – 0.3 mm

Angular reading by inserting a 0.2mm gaugeE = 176¡ (Tolerance = – 2)F = 126¡ (Tolerance = – 2)G = 132¡ (Tolerance = – 2)

DRAWING OF THE CYLINDER BASE CYLINDER SECTION VIEW

DRAWING OF THE CYLINDER HEAD AND THE COMBUSTION CHAMBER

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Combustion chamber volume =12.5 c.c. minimum

DRAWING OF THE CRANKSHAFT DRAWING OF THE INSIDE OF SUMP

Complete weight = 1916 gr. Tolerance= – 5%

IGNITION

Manufacturer :SELETTRAModel Number P3356ERotationDescription

PHOTO OF IGNITION PHOTO OF COIL

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CARBURETOR DIMENSION

PISTON CONNECTING ROD

Weight=117gr. Tolerance= –5gr. Weight= 112 gr. Tolerance= –2%

DRAWING OF THE SILENCER AND IT S COMPONENTS

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The end parts of the silencer musthave two soldered pairs of lugs (onepair at the top and one pair at thebottom) to allow for fixing of seals bythe Organizer so that the silencer maybe opened during the competition

Measurements:

A: 110 mm ¿ ext. .– 3 mmB: 100 mm ¿ ext. .– 3 mmC: 54 mm ¿ ext. – 1.5 mmD: 485 mm. – 3 mmE: 172 mm. – 3 mmF: 319 mm. – 3 mmG: 100 mm . – 3 mmH: 172 mm. – 3 mmI: 22 mm– 1mmJ:K: 130 mm . – 3 mm

DRAWING OF THE SILENCER

DRAWING OF THE CLUTCH

Item Weight Tolerance

A 285 grams – 10 grams

B 473 grams – 15 grams

C 260 grams – 10 grams