The Kohler XT650, XT675, and XT775 engine user manual provides safety guidelines, operation steps, maintenance schedules, and troubleshooting tips.
This manual covers essential safety warnings, proper starting procedures, and detailed maintenance instructions for the XT650, XT675, and XT775 Kohler engines. It includes guidance on oil changes, fuel selection, spark plug adjustment, and air‑filter care.
Additional sections explain high‑altitude operation, storage recommendations, and a troubleshooting chart with common fault causes and corrective actions. Technical specifications for each model are listed at the end of the document. This manual is written in Chinese.
| Bore (XT650) | 2.56 in. (65 mm) |
|---|---|
| Stroke (XT650) | 1.8 in. (45 mm) |
| Displacement (XT650) | 9.1 cu. in. (149 cc) |
| Oil Capacity (XT650) | 20 oz. (0.60 L) |
| Spark Plug Gap (XT650) | 0.03 in. (0.76 mm) |
| Bore (XT675/XT775) | 2.75 in. (70 mm) |
| Displacement (XT675/XT775) | 10.6 cu. in. (173 cc) |
| Recommended Fuel | Clean, fresh unleaded gasoline 87 (R+M)/2 or higher, up to 10% ethanol |
Replace the oil after the first 3–5 hours of operation, then every 25 hours or once per year.
Use clean, fresh unleaded gasoline with an octane rating of 87 (R+M)/2 or higher; blends up to 10% ethanol are allowed.
Set the spark plug gap to 0.03 in. (0.76 mm).
For altitudes above 4000 ft (1219 m) a high‑altitude carburetor kit is required; otherwise use the standard configuration.