Engine Specifications; Chapter 2 Specifications; Carburetor - Yamaha KT100SEC Owner's Service Manual

ENGINE SPECIFICATIONS

Model name
Specifications:
Engine type
Cylinder arrangement
Displacement
Bore × stroke
Compression ratio
Clutch type:
Starting system
Crank:
Structure
Big end bearing type
Crankshaft:
Small end free play "A",
Runout limit "B",
Crank width "D"
Piston:
Piston to cylinder clearance
Type
End gap
Carburetor: KT100SEC
Type
Standard setting
Idle needle
High speed needle
Carburetor: KT100SEJ
Type
Standard setting
Idle needle
High speed needle
Electrical:
Ignition system
Ignition system (BTDC)
Coil:
Primary winding resistance
Secondary winding resistance
Spark plug:
Type
manufacturer
plug gap
ENGINE SPECIFICATIONS
A
B B
C
D
2-1
SPEC
KT100SEC/KT100SEJ
Air cooled 2-stroke, gasoline
Single cylinder, forward inclined
0.0976L（97.6cm3）
52mm×46mm
7.9
Automatic
Starter motor
Assemble type
Needle roller bearing
A: 0.1 mm or less
B: 0.03 mm or less
D：45.8∼45.9mm
0.030∼0.035mm
Plain type (Cr-plated)
0.4∼0.5mm
WALBRO WB-21
1-1/3±1/6 (80±10 min.)
5/12±1/6 （25±10 min.）
WALBRO HDA237
1-1/4±1/6 (75 ±10 min.)
11/12 (55 min.)
T.C.I
25°（2.6mm）
0.8∼1Ω
10KΩ
B9EVX
NGK
0.6∼0.7mm
2