Outboard motor · 115 HPYamaha LF115XB
Mechanical control leverSteering: mechanical or hydraulic, fitted in the boatInstallation and rigging at the GRAND BOATS Poland service centre in Łężyce. Sold in cooperation with an authorised Yamaha dealer; manufacturer warranty 3 + 2 years at an authorised Yamaha service.
Yamaha LF115XB — 115 HP
Yamaha LF115XB is a four-stroke outboard motor rated at 115 HP (84,6 kW at the propeller shaft). Engine: 16-zaworowy, DOHC, rzędowy 4, displacement 1832 cm³, wtrysk paliwa. Dry weight: 175–185 kg.
A motor for remote control from the console — throttle and shift by cables from the control lever (mechanical controls), with mechanical or hydraulic steering in the boat. A proven choice for console boats that is simple to service. The model has electric start and power trim and tilt (PTT) — the motor angle is set with a button, even while underway.
Shaft length X (25″ / 635 mm). The shaft is matched to the boat’s transom height so that the anti-cavitation plate runs just below the water surface. Transom height for this shaft according to Yamaha: 643 mm.
A counter-rotating motor is paired with a standard-rotation one — in a twin installation it balances the torque and makes the boat easier to handle.
Fuel consumption at full power according to Yamaha: 38,9 L/h @5800 obr/min. The LF115XB is within the power range the shipyard recommends for the GRAND D600 Drive, GRAND D600 Lux, GRAND D600 Active. At the GRAND BOATS Poland service centre in Łężyce near Gdynia we install the engine, do the rigging and choose the propeller. The engine is supplied in cooperation with an authorised Yamaha dealer; the manufacturer warranty (3 + 2 years) is carried out by an authorised Yamaha service.
Yamaha LF115XB
| Maximum output (at propeller shaft) | 115 KM (84,6 kW) |
|---|---|
| Full-throttle range | 5300–6300 rpm |
| Idle speed | 700–800 rpm |
| Fuel consumption (reference data) | 38.9 L/h @5800 rpm |
| Engine type | 4-stroke, 16-valve, DOHC, in-line 4 |
| Displacement | 1832 cm³ |
| Bore × stroke | 81,0 × 88,9 mm |
| Compression ratio | 10,0:1 |
| Fuel system | Fuel injection |
| Lubrication | Wet sump |
| Engine oil capacity | 3.2 L / 3.0 L (with / without filter change) |
| Ignition | TCI |
| Spark plug | LKR6E |
| Alternator | 35 A (battery charging: 27 A) |
| Trim | PTT: stepless |
| Gear ratio | 2,15 (28/13) |
| Gear shift | F-N-R |
| Propeller rotation | Left (counter-rotating) |
| Shaft lengths in the family | L, X (FL115B: X) |
| Overall height (X shaft) | 1756 mm |
| Transom height (X shaft) | 643 mm |
| Beam | 524 mm |
| Weight (dry) | 175–185 kg |
| Steering angle | 35° each way |
Source: Yamaha Product Information Guide 2026 (F115B family). Fuel consumption — manufacturer’s reference data.
