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Model: CT

MANUFACTURED BY:
DOLMAR Maschinen-Fabrik GmbH & Co.
HAMBURG, GERMANY
SERIES OR ASSEMBLY NUMBER:
115
SERIAL NUMBER PREFIX:
YEAR INTRODUCED:
1968
YEAR DISCONTINUED:
1990
ENGINE DISPLACEMENT:
118 ccm (7.2 cu. in.)
NUMBER OF CYLINDERS:
1
CYLINDER BORE:
56 mm (2.20 in.)
PISTON STROKE:
48 mm (1.89 in.)
PISTON RING THICKNESS:
CYLINDER TYPE:
CHROME plated aluminum
INTAKE METHOD:
Piston ported
MANUFACTURER ADVERTISED H.P.:
8 DIN, 12 SAE
WEIGHT:
12.3 kg with 53 cm bar & chain
27 lbs. with 21 in bar & chain
OPERATOR CONFIGURATION:
One Man operation
HANDLEBAR SYSTEM:
Rigid
CHAIN BRAKE:
none
CLUTCH:
Centrifugal
DRIVE TYPE:
Direct
CONSTRUCTION:
Die cast MAGNESIUM
MAGNETO TYPE:
Bosch CD electronic, early production Bosch flywheel magneto system
CARBURETOR:
Tillotson HL 247A
MAJOR REPAIR KIT:
RK-97HL
MINOR REPAIR KIT:
DG-2HL
AIR FILTER SYSTEM:
Nylon mesh
STARTER TYPE:
Dolmar automatic rewind
OIL PUMP:
Adjustable automatic driven off crankshaft at starter end
MAXIMUM ENGINE RPM:
IDLE RPM:
IGNITION TIMING:
3.4 mm (0.136 in.) before TDC on flywheel magneto type
2.6 mm (0.102 in.) before TDC on electronic type
BREAKER POINT SETTING:
0.4 mm (0.016 in.)
FLYWHEEL/COIL AIR GAP:
0.25 to 0.39 mm (0.010 to 0.015 in.)
SPARK PLUG TYPE:
Bosch WSR6F (oldWK 225 T1)
SPARK PLUG GAP:
0.5 mm (.020 in.)
CRANKSHAFT MAIN BEARINGS:
Ball
FUEL TANK CAPACITY:
FUEL OIL RATIO:
40:1
RECOMMENDED FUEL OCTANE:
1.1 Litres (37 oz.)
MIX OIL SPECIFICATION:
SAE 30
CHAIN PITCH:
.404 in.
CHAIN TYPE:
Dolmar Silver Arrow
BAR MOUNT PATTERN:
SHORTEST GUIDE BAR SUPPLIED:
53 cm (21 in.)
LONGEST GUIDE BAR SUPPLIED:
112 cm (44 in.)
COLOUR SCHEME:
Dolmar Orange
PAINT CODES:
ILLUSTRATED PARTS LIST:
SERVICE MANUAL:

COMMENTS:


There were three different series of model CT built. Series 1 were Orange and Black. Colour photographs courtesy Marco Schuiling

Series 2 were all orange

Series 3 were also all orange but had anti-vibration mounting added. Colour photographs courtesy Marco Schuiling

 

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