2021 Mercury 9.9 HP MLH Outboard Motor

$ 91.93

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Now you can control the sound of the BOV from inside the cabin!

So how much more can you do with a blow-off valve? Well, the Deceptor Pro II takes the ‘Respons’ concept even further...

  • Adjust your BOV venting bias electronically on-the-fly
  • Revised porting to optimise flow and venting bias
  • Compact design fits in most factory valve locations
  • Direct bolt on for many vehicles
  • New bore finishing process ensures a lifetime of reliable operation

Deceptor Pro II features

Direct bolt-on for most vehicles available:

  • Remote proportional venting bias/volume control- from silent to loud or anywhere in between
  • Sleek, compact in-car BOV volume controller with backlit dial
  • End point adjustment to control maximum vent to atmosphere bias setting
  • Volume adjustment mechanism driven by a high-torque geared electric motor
  • Durable, low-friction ger train supported by precision sealed ball-bearing
  • Supplied with all parts and wiring required to have it up and running quickly and easily
The Mercury 9.9hp Model # 9.9MLH outboard motor is lightweight, compact, powerful, and portable making it the perfect outboard for skiffs and small pontoons. The Mercury 9.9 HP outboard engine is a two cylinder four-stroke marine engine that delivers the fuel efficiency and smooth quiet ride Mercury outboards are known for. This 84 lb. Mercury 9.9 HP Outboard Model # 9.9MLH comes equipped with a manual start and 20 inch long shaft, factory 3 year warranty, auto ratchet manual tilt, and tiller steering. Additional information Horsepower 9.9 HP Shaft Length 20″ (Long) Starter Type Manual Tilt & Trim Manual   FEATURES Compact and Lightweight Digital CD Ignition with Spark Advance High Grade Marine Alloy Construction Stainless Steel Water Pump Housing Zinc Coated Water Passages Rated for Saltwater Use Sacrificial Zinc Anodes and Trim Tab Tiller Integrated F-N-R Gear Shifting Adjustable Steering Tension Control Twist-Grip Throttle with Tension Control Thermostat Controlled Water Cooling Auto Ratchet Trim System (5 positions) Shallow Water Drive Quiet Through-Propeller-Hub Exhaust 3.2 Gallon Fuel Tank and Fuel Line Start-In-Gear Protection Low Oil Pressure Warning Indicator ESG Over-Rev Protection Safety Lanyard Stop Switch Owner’s Manual Mercury Marine 3-Year Warranty   SPECS MODEL 9.9MLH MODEL YEAR 2021 SKU 9.9MLH-21 WEIGHT 84.0 lb MANUFACTURER Mercury COUNTRY OF MANUFACTURE Japan HORSEPOWER 9.9hp SHAFT LENGTH 20″ (Long) STEERING Tiller STARTING Manual TRIM & TILT Manual FUEL DELIVERY Carburetor FUEL TANK External CYLINDER(S) 2 DISPLACEMENT 12.8 ci (208 cc) BORE AND STROKE 2.16 x 1.73 in. (55 x 44 mm) FULL THROTTLE RPM RANGE 5,000 – 6,000 IGNITION SYSTEM CDI with electronic spark advance INDUCTION SCAVENGING SOHC VALVES PER CYLINDER 2 FUEL TYPE 87 Octane (up to 10% ethanol content) FUEL TANK / FUEL LINE 3.2 Gal. Fuel Tank Quick Connect Fuel Line OIL TYPE SAE 10W-30 (Mercury 4-Stroke Outboard Oil) OIL CAPACITY 27 fl. Oz. (800 ml) LUBRICATION Trochoid Pump ALTERNATOR Optional 12V 76W 6A (installation required) COOLING SYSTEM Water-cooled with thermostat SALTWATER RATED Yes GEAR RATIO 2.08:1 GEAR SHIFT Forward-Neutral-Reverse (shift in tiller handle) PROPELLER 8.5″ Diameter X 8.0″ Pitch 3-Blade Aluminum   IN THE BOX Fuel Tank (3.2 gallon) Quick Connect Fuel Line Mercury 3-Year Warranty Aluminum Propeller Mercury 4-Stroke Oil Owner’s Manual & Tool Kit
Performance Without Compromise