|
Model |
YZ 125 D/E |
|
|
Year |
1977 - 78 |
 |
|
Frame/Engine Prefix (XXX-000101) |
1W1 (2KS*) |
|
|
Engine Type |
2 stroke |
|
|
Bore (mm) |
56 |
|
|
Stroke (mm) |
50 |
|
|
Capacity (cc) |
123 |
|
|
Compression Ratio (to 1) |
7.8 (7.4*) |
|
|
Bhp @ rpm |
14.7 @ 11,000 |
Model Notes |
|
Torque (kgm) @ rpm |
1.01 @ 9,500 |
Pictures only show one year on multi-year bikes. Check VIN tables for colors for your specific year. |
|
Oil System |
Premix |
|
|
Engine Cooling |
Air |
|
|
Carburetor (mm) |
VM32SS |
|
|
Ignition System |
CDI |
|
|
Ignition Timing (mm) |
||
|
Primary drive gearing |
3.23 |
|
|
Final Drive Gearing |
51/12 |
|
|
Box Gearing first |
2.46 |
|
|
Box Gearing second |
1.87 |
|
|
Box Gearing third |
1.50 |
|
|
Box Gearing fourth |
1.25 |
|
|
Box Gearing fifth |
1.09 |
|
|
Box Gearing sixth |
1.00 |
|
|
Fuel Cap. (liters) |
6.5 |
|
|
Engine Oil Cap. (liters) |
- |
|
|
Gearbox Oil Cap. (Liters) |
||
|
Fork Oil Ca. (cc/leg) |
||
|
Front Tire (stock) |
3.00-21 |
|
|
Rear Tire (stock) |
4.10-18 |
|
|
Front Brake |
SLS DRUM |
|
|
Rear Brake |
SLS DRUM |
|
|
Rear Suspension |
Monoshock |
|
|
Front Susp. Travel (mm) |
236 (230*) |
|
|
Rear Susp. Travel (mm) |
224 (230*) |
|
|
Rake (degrees) |
31 (30*) |
|
|
Trail (mm) |
139 (133*) |
|
|
Width (mm) |
851 (864*) |
|
|
Ground Clearance (mm) |
287 (295*) |
|
|
Wheelbase (mm) |
1410 (1420*) |
|
|
Dry Weight (kg) |
86.5 (86*) |
|
|
77-78 YZ125 D/E Specifications
Written by yamadmin 
. Posted in 125cc
