115HP
Right-sized on purpose
There is nothing exotic about the 1832 cc, 16-valve DOHC in-line four — and that is rather the point. Electronic Fuel Injection keeps the mixture right whatever the day is doing, wet-sump lubrication keeps the plumbing straightforward, and a 10.0 : 1 compression ratio makes modest displacement feel immediate, from a 700–800 r/min idle right through to the top of the range.
Electrically it holds a reserve you rarely have to think about: a three-phase 35 A alternator, 27 A of it given over to battery charging, so instruments, lights and the starter motor can share a long afternoon of low revs without the day ending flat. Y-COP immobilises the engine from a key fob when you walk away, the tilt limiter stands between cowling and transom, and the front-mounted flushing port makes rinsing out the salt the last easy job of the day.
DETAILS
ABOUT 115HP
ENGINE
| ➢ CATEGORY | High Power range (F350-F225) |
|---|---|
| ➢ Engine type | 16-Valve, DOHC, In-line 4 cylinders |
| ➢ Displacement | 1832 cc |
| ➢ Bore x stroke | 81.0 × 88.9 mm |
| ➢ Compression ratio | 10.0 : 1 |
| ➢ Fuel induction system | Fuel injection |
| ➢ Lubrication system | Wet sump |
| ➢ Engine oil capacity | 3.2 L / 3.0 L (with / without oil filter replacement) |
| ➢ Ignition / advance system | TCI |
| ➢ Alternator | 35 A (battery charging: 27 A) |
DIMENSIONS
| ➢ Overall length | EHT: 1554 mm, ET: 826 mm |
|---|---|
| ➢ Overall width | 524 mm |
| ➢ Overall height | L: 1629 mm, X: 1756 mm |
| ➢ Engine transom height | L: 516 mm, X: 643 mm |
| ➢ Steering angle | 35 degrees each direction |
| ➢ Dry weight | 175 kg – 185 kg |
ADDITIONAL FEATURES
| ➢ Maximum propeller shaft output | 84.6 kW |
|---|---|
| ➢ Full throttle operating range | 5300 – 6300 r/min |
| ➢ Idling speed | 700 – 800 r/min |
| ➢ Shallow water drive | PTT: variable position |
| ➢ Gear shift | F-N-R |
| ➢ Gear ratio | 2.15 (28/13) |
| ➢ Gear oil capacity | 0.760 L |
SERENITY
Slow water, fine adjustments
Fine control is what makes slow days bearable. Variable trolling control moves engine speed in 50 rpm increments, which turns holding a pace into a setting rather than a skill. PTT variable-position shallow water drive gets the leg clear when the sand comes up to meet you, F-N-R shifts stay crisp behind a 2.15 (28/13) gear ratio, and 35 degrees of steering each direction gives a tight harbour more room than it appears to have.
DESIGN
ENGINE
Nothing here is oversized. At 524 mm across and 175–185 kg dry, the 115HP sits on an existing transom without upsetting the boat’s balance — which is exactly why swapping an older engine for one stops being a project. Behind the sleek cowling, 84.6 kW reaches the propeller shaft across a 5300–6300 r/min full throttle range: unremarkable on paper, genuinely quick on the water.
WARRANTY
5 YEAR PROMISE
Enjoy Yamaha’s industry-leading limited warranty, offering up to 5 years of peace of mind. The 115HP is built to exacting standards with proven dependability. Whether you’re navigating calm bays or deep offshore waters, Yamaha’s legacy of excellence keeps you covered.
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