Mid-Sized Four Stroke Comparison Chart |
Mid-Sized Four Stroke Comparison Chart |
| ENGINE | BORE |
STROKE |
WEIGHT |
RPM range |
est. Horespower |
| Saito 100 | 29.0 | 25.0 | 19.4 oz.(550g) | 2100-9300 | 1.8 |
| YS 110 | 30.4 | 24.8 | 27 oz (750g) | 2000-9500 | 2.20 |
| Saito 91 | 28.2 | 24.0 | 18.3 oz (520g) | 2000-11,500 | 1.6 |
| YS 91 | 27.7 | 24.8 | 27 oz (750g) | 2000-13,000 | 2.0 |
| OS 91 | 27.7 | 24.8 | 23.0 oz(655g) | 2000-12,000 | 1.6 |
| OS 91 Pump | 27.7 | 24.8 | 23.9 oz (678g) | 2000-12,000 | 1.6 |
| Thunder Tiger 91 | 23.8 | 28.3 | 25.7 oz (730g) | 1800-12,000 | 1.6 |
| ASP 91 | 27.7 | 24.8 | 22.57 oz (640g) | 2000-11,000 | 1.3 |
