Step 1: OIL INJECTION SYSTEM
(A) Oil level warning lamp red light up.

(B) Exhaust smoke is too much.
Oil consumption is too much.

(C) Engine over heat.
Oil emission is not enough.

| Model Group | Year | Model | Serial |
|---|---|---|---|
| Yamaha Outboard | 1990 | 90hp | All |
| Yamaha Outboard | 1990 | 70hp | All |
(A) Oil level warning lamp red light up.

(B) Exhaust smoke is too much.
Oil consumption is too much.

(C) Engine over heat.
Oil emission is not enough.
