The Kohler KT21 is a 0.86 L 2-cylinder engine rated at 3600 rpm, producing up to 15.7 kW. It powers generator sets from Kohler. It holds 0.4 L (0.1 gal) of oil.
Also known as: Kohler KT21
| Oil capacity | 0.4 L |
|---|---|
| Displacement | 0.8647 L |
| Cylinders | 2 |
| Rated speed | 3600 rpm |
| Gross power | 15 kW |
| Code | Meaning | Remedy |
|---|---|---|
| 1 | Black, sooty exhaust smoke, engine sluggish. | Readjust main fuel screw |
| 2 | Engine misses and backfires at high speed. | Readjust main fuel screw |
| 3 | Engine starts, sputters and dies under cold weather starting. | Turn main fuel adjustment 1/4 turn counterclockwise |
| 4 | Engine runs rough or stalls at idle speed. | Readjust speed then idle fuel screw if needed |
| SQ | Choke Will Not Fully Open | 1. Adjust choke. 2. Repair with kit or replace choke. |
Fault codes and symptom→remedy steps extracted from this engine’s service/owner documentation; verify against the official manual before servicing.
Compiled from service & troubleshooting documentation across every generator set that uses the Kohler KT21.
The Kohler KT21 engine has an oil capacity of 0.4 liters.
The Kohler KT21 has a displacement of 0.8647 liters with 2 cylinders.
The Kohler KT21 powers 1 generator set(s), including Kohler KT21.
A commonly reported issue on generators using the Kohler KT21 is: Engine starts, sputters and dies under cold weather starting.. Fix: Turn main fuel adjustment 1/4 turn counterclockwise.