| ITEM | FAIL-SAFE MODE | STARTING ABILITY | RUNNING ABILITY |
| Intake air pressure sensor | Intake air pressure and atmospheric pressure are fixed to 760 mmHg. | "YES" | "YES" |
| Throttle position sensor | The throttle opening signal is fixed to full open position, and STV is fixed at 1/2 open position. Ignition timing is also fixed. | "NO" | "YES" |
| Engine coolant temperature sensor | Engine coolant temperature value is fixed to 80°C (176°F). | "YES" | "YES" |
| Intake air temperature sensor | Intake air temperature value is fixed to 40°C (104°F). | "YES" | "YES" |
| Ignition signal #1 | #1 Fuel cut | "YES" | "YES" |
| #2 cylinder can run. | |||
| Ignition signal #2 | #2 Fuel cut | "YES" | "YES" |
| #1 cylinder can run. | |||
| Injection signal #1 | #1 Fuel-cut | "YES" | "YES" |
| #2 cylinder can run. | |||
| Injection signal #2 | #2 Fuel-cut | "YES" | "YES" |
| #1 cylinder can run. | |||
| Secondary throttle valve actuator | ECM stops controlling STV. | "YES" | "YES" |
| Secondary throttle position sensor | ECM stops controlling STV. | "YES" | "YES" |
| Gear position signal | Gear position signal is fixed to 4th gear. | "YES" | "YES" |
| Heated oxygen sensor (E-02, 19) | Fuel-air compensation ratio is fixed to normal condition. | "YES" | "YES" |
| PAIR control solenoid valve | ECM stops controlling PAIR control solenoid valve. | "YES" | "YES" |
The engine can start and can run even if the above signal is not received from each sensor. But, the engine running condition is not complete, providing only emergency help (by fail-safe circuit). In this case, it is necessary to bring the motorcycle to the workshop for complete repair.