2018 Mercury 15 Hp 15MH Outboard Motor

The 2018 Mercury 15MH is a new, manual-start tiller outboard rated at 15 HP, with a 15-inch short shaft and a four-stroke powerhead displacing 351cc. Rather than carrying the extra weight and wiring of electric start, this one keeps things simple with a pull cord, which suits owners running a smaller fishing boat, dinghy, or inflatable where low weight at the stern matters. Starting and electrical Because this is manual start, there is no onboard alternator for charging a battery; Mercury offers an alternator kit as a separate, optional purchase for owners who want to run small electronics or keep a battery charged. Full-throttle engine speed falls between 5400 and 5600 RPM, somewhat higher than the electric-start version's range in this lineup. Fuel is carbureted rather than injected, supplied from an external tank rated at 6.6 gallons. Durability and coverage Mercury backs the lower end with a saltwater rating and multi-layer corrosion protection, paired with electronic safeguards that watch for overheating, over-revving, and starting in gear by accident. A 3-blade aluminum propeller spins on the same 2.15:1 gearcase used elsewhere in this lineup, and Mercury covers this one with a three-year warranty. Does this have a battery charging option? Not out of the box; Mercury sells an alternator kit separately for owners who need one. Is this electric or manual start? Manual pull-start only. Specifications Feature Details Engine Type 4-Stroke, Large Displacement Powerhead Horsepower 15 HP Shaft Length 15” (Short Shaft) Starting System Manual Start Fuel System Carbureted Full Throttle RPM Range 5400-5600 RPM Displacement 351cc (21.4 cubic inches) Bore & Stroke 2.40 x 2.36 inches Cooling System Water-Cooled, Thermostatically Controlled Fuel Type Unleaded Gasoline (87 Octane, up to 10% Ethanol) Fuel Tank Capacity 6.6 Gallons (Included) Lubrication System Trochoid Pump Oil Capacity 1 Quart (1000 mL), SAE 10W-30 Mercury 4-Stroke Outboard Oil Feature Details Steering Type Tiller Handle Gear Shift Forward-Neutral-Reverse (Integrated in Tiller Handle) Gear Ratio 2.15:1 Propeller 9.2” Diameter X 9.8” Pitch, 3-Blade Aluminum Trim & Tilt Manual Shallow Water Drive Yes Steering Tension Control Adjustable for Stability Feature Details Saltwater Rated Yes, Multi-Layer Corrosion Protection Start-in-Gear Protection Yes Low Oil Pressure Warning Indicator Yes Overheat Warning System Yes Over-Rev Protection Yes, ESG System Safety Lanyard Stop Switch Yes