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World’s Best Performing DFI 2-Strokes!

OPTIMAX 300XS KEY FEATURES ■ New stroked and balanced crankshaft for maximum displacement and performance. ■ Extensive R & D result in Formula 1 race-based exhaust porting and reed block fuel induction design for top power. ■ New combustion chamber design enables engine to produce peak power longer at upper end of operating RPM range. ■ New PCM 07 microprocessor with 14-pin Deutsch connector harness incorporates engine ignition and SmartCraft CAN (Controller Area Network) wiring in one computer. ■ Acoustically tuned foam cowling wrap and new exhaust bucket design produces quieter running throughout the operating range. ■ Torque Master, Sport Master and new heavy-duty Fleet Master gearcases enhance the versatility of the world’s most powerful outboard!

In recent tests, conducted by Mercury Racing and observed by an independent agency, the OptiMax 250XS outperformed the Yamaha® 300 HPDI® low-emissions outboard in acceleration, top-speed and fuel economy.

The introduction of the OptiMax 300XS sets a new standard in DFI outboard performance. We look forward to going head-to-head with competitor outboards badged with like horsepower ratings.

Part #90-889235007 • Published 02/06

www.mercuryracing.com

©2006, Mercury Marine • All Rights Reserved Printed in U.S.A.

Mercury Racing • N7480 County Rd. UU • Fond du Lac, WI 54935 • Ph. 920-921-5330 • FAX: 920-921-6533 800-MERCURY • www.mercurymarine.com

United States • Coast Guard Auxiliary 800-368-5647 • www.cgaux.org United States • Power Squadrons 888-FOR-USPS • www.USPS.org Boat smart from the start! Take a boating education course, and get a vessel safety check for your boat. For more information, contact:

The Race Never Stops! ® #1 On The Water

™ ®

®

Remember: Life Vests Float. You Don’t.


World’s Best Performing DFI 2-Strokes!

OPTIMAX 300XS KEY FEATURES ■ New stroked and balanced crankshaft for maximum displacement and performance. ■ Extensive R & D result in Formula 1 race-based exhaust porting and reed block fuel induction design for top power. ■ New combustion chamber design enables engine to produce peak power longer at upper end of operating RPM range. ■ New PCM 07 microprocessor with 14-pin Deutsch connector harness incorporates engine ignition and SmartCraft CAN (Controller Area Network) wiring in one computer. ■ Acoustically tuned foam cowling wrap and new exhaust bucket design produces quieter running throughout the operating range. ■ Torque Master, Sport Master and new heavy-duty Fleet Master gearcases enhance the versatility of the world’s most powerful outboard!

In recent tests, conducted by Mercury Racing and observed by an independent agency, the OptiMax 250XS outperformed the Yamaha® 300 HPDI® low-emissions outboard in acceleration, top-speed and fuel economy.

The introduction of the OptiMax 300XS sets a new standard in DFI outboard performance. We look forward to going head-to-head with competitor outboards badged with like horsepower ratings.

Part #90-889235007 • Published 02/06

www.mercuryracing.com

©2006, Mercury Marine • All Rights Reserved Printed in U.S.A.

Mercury Racing • N7480 County Rd. UU • Fond du Lac, WI 54935 • Ph. 920-921-5330 • FAX: 920-921-6533 800-MERCURY • www.mercurymarine.com

United States • Coast Guard Auxiliary 800-368-5647 • www.cgaux.org United States • Power Squadrons 888-FOR-USPS • www.USPS.org Boat smart from the start! Take a boating education course, and get a vessel safety check for your boat. For more information, contact:

The Race Never Stops! ® #1 On The Water

™ ®

®

Remember: Life Vests Float. You Don’t.


Mercury Racing is all about our passion for perfection and the pursuit of peak performance. We have a reputation for exceeding consumer expectations in product quality and performance - something we've carried forward from the late Carl Kiekhaefer, founder of Mercury Marine, and to Mercury Racing’s President, Fred Kiekhaefer. The OptiMax 300XS continues our heritage of delivering more power and performance than competitors with the same horsepower rating.

The POWERHEAD The heart of the new 300XS is a 3.2 Liter V-6 powerhead featuring a stroked and balanced crankshaft for maximum power and performance. A dampener ensures smooth running throughout the engine operating range. New pistons have an updated profile and a composite coating for improved wear life. Airflow through the reed block fuel induction system is enhanced due to thinner reed material

The FUEL SYSTEM The 300XS features a higher air/ fuel pressure differential than production engines, enhancing running quality. Unlike other DFI systems, OptiMax uses an exclusive two-stage process. A burst of air (at 95 psi) shoots through the fuel, breaking it into a fine mist. and creating more surface area for combustion. The result is a more consistent and complete burn. The 300XS can surpass the fuel economy of many of today's large four-stroke engines. Compared with traditional two-stroke engines, the 300XS uses up to 45 percent less fuel during the same running period. The new PCM 07 microprocessor features a fuel calibration unique to the 300XS. The calibration, combined with the race-bred combustion chamber design, produces peak power for a longer period of time at the upper RPM operating range. The PCM 07 optimizes fuel, spark timing and knock control for each cylinder independently, enhancing engine running quality and performance.

developed for Formula 1 racing and the 300XS comes with a heavy-duty direct fuel injection air compressor for improved compressor reliability. The PCM 07 microprocessor operates the electronic multipoint lubrication system. The SmartCraft Control Area Network (CAN) system, a network of sensors and actuators, proactively monitors and controls multiple engine functions. It provides real-time engine data including speed, RPM, engine trim, fuel consumption and range. An integrated coil system completes an updated package of onboard electronics. The 300XS full throttle RPM range is 5400-6000 for 20” models and the 25” Walleye model and 5400-5800 for 25” and 30” models.

The MIDSECTION The 300XS is available with 20”, 25” and 30” die-cast midsections featuring an allnew exhaust system. Water jacketed exhaust is routed under water - exiting the midsection just above the gearcase cavitation plate. The routing of exhaust below the water surface, along with a foam lined cowl and attenuator for the compressor - greatly reduces the operating Dba.

S

P

E

C

Propshaft Rated HP Full Throttle RPM Range Cylinders Displacement Bore Stroke Induction System Ignition Alternator System Gear Ratio Fuel/Oil Ratio Recommended Oil Required Fuel Rotation Shaft Length Weight Warranty

**

I

F

I

C

A

T

I

O

N

S

300 (224 kW) 5400-5800 (20” models 5400-6000)* V-6 (60˚ vee) 193 cu. in. (3160 cc) 3.63” (92 mm) 3.11” (79 mm) 2-Stage Direct Fuel Injection PCM 07 Digital Inductive 60-amp (756 watt) w/Voltage Regulator 1.62:1, 1.75:1 (SM)**, (TM)** or 1.75:1 (FM)** or w/o Electronic Multipoint Mercury Premium Plus (TC-W3) 91 Octane Minimum (R+M)/2 (96 RON) Right- or Left-hand (FM) (SM) Right-hand (TM) 20” (508 mm), 25” (635 mm) or 30” (762 mm) 505 lbs. (229 kg) (L) 505 lbs. (229 kg) (XL) 517 lbs. (235 kg) (XXL) 534 lbs. (234 kg) 2-year limited warranty for recreational boating & 3-year limited corrosion warranty. 1-year limited Mercury Product Protection Plan available.

Available on 20”standard models only. *25”walleye models at 5400-6000 RPM operating range. All models and specifications are subject to change without notice.

The GEARCASES OptiMax 300XS models fitted with the 20” midsection are available with the Torque Master and Sport Master gearcases. Both feature purpose-built housings packed with race-proven heavy-duty components. Applications include single engine bass and flats boats, as well as, catamaran and vee-bottom sport boats. The Fleet Master gearcase, standard on 25” and 30” offshore models, is designed to withstand the rigors of offshore tournament fishing in the tough salt water environment. Internal features include a 19-spline stainless steel propshaft, heavy-duty bearing carrier and double shot-peened pinion gear. The Torque Master and Sport Master gearcases are available on 20” models. The Torque Master, designed for single engine applications, is available in righthand rotation only. Sport Master and Fleet Master gearcases are available in right-hand and left-hand rotation.

The PROPELLERS Mercury Racing provides a variety of propellers designed for specific applications. Popular outboard propellers include overhub exhaust three-blade Lightning E.T., three and four-blade cleavers and the new four-blade Pro ET. Through-hub exhaust models - include the three-blade Tempest, four-blade Trophy and four-blade Bravo I propellers. Mercury Racing lab finishes each model to exact tolerances to ensure the design provides maximum efficiency and boat performance. We also offer custom propeller services. Propeller specialists work one-on-one with customers and customize their propellers to maximize performance for their specific application. Contact Mercury Racing Propeller Specialists Ron Steiner or Scott Reichow for additional information regarding our complete line of Mercury Racing propellers and our propeller customization services.


Mercury Racing is all about our passion for perfection and the pursuit of peak performance. We have a reputation for exceeding consumer expectations in product quality and performance - something we've carried forward from the late Carl Kiekhaefer, founder of Mercury Marine, and to Mercury Racing’s President, Fred Kiekhaefer. The OptiMax 300XS continues our heritage of delivering more power and performance than competitors with the same horsepower rating.

The POWERHEAD The heart of the new 300XS is a 3.2 Liter V-6 powerhead featuring a stroked and balanced crankshaft for maximum power and performance. A dampener ensures smooth running throughout the engine operating range. New pistons have an updated profile and a composite coating for improved wear life. Airflow through the reed block fuel induction system is enhanced due to thinner reed material

The FUEL SYSTEM The 300XS features a higher air/ fuel pressure differential than production engines, enhancing running quality. Unlike other DFI systems, OptiMax uses an exclusive two-stage process. A burst of air (at 95 psi) shoots through the fuel, breaking it into a fine mist. and creating more surface area for combustion. The result is a more consistent and complete burn. The 300XS can surpass the fuel economy of many of today's large four-stroke engines. Compared with traditional two-stroke engines, the 300XS uses up to 45 percent less fuel during the same running period. The new PCM 07 microprocessor features a fuel calibration unique to the 300XS. The calibration, combined with the race-bred combustion chamber design, produces peak power for a longer period of time at the upper RPM operating range. The PCM 07 optimizes fuel, spark timing and knock control for each cylinder independently, enhancing engine running quality and performance.

developed for Formula 1 racing and the 300XS comes with a heavy-duty direct fuel injection air compressor for improved compressor reliability. The PCM 07 microprocessor operates the electronic multipoint lubrication system. The SmartCraft Control Area Network (CAN) system, a network of sensors and actuators, proactively monitors and controls multiple engine functions. It provides real-time engine data including speed, RPM, engine trim, fuel consumption and range. An integrated coil system completes an updated package of onboard electronics. The 300XS full throttle RPM range is 5400-6000 for 20” models and the 25” Walleye model and 5400-5800 for 25” and 30” models.

The MIDSECTION The 300XS is available with 20”, 25” and 30” die-cast midsections featuring an allnew exhaust system. Water jacketed exhaust is routed under water - exiting the midsection just above the gearcase cavitation plate. The routing of exhaust below the water surface, along with a foam lined cowl and attenuator for the compressor - greatly reduces the operating Dba.

S

P

E

C

Propshaft Rated HP Full Throttle RPM Range Cylinders Displacement Bore Stroke Induction System Ignition Alternator System Gear Ratio Fuel/Oil Ratio Recommended Oil Required Fuel Rotation Shaft Length Weight Warranty

**

I

F

I

C

A

T

I

O

N

S

300 (224 kW) 5400-5800 (20” models 5400-6000)* V-6 (60˚ vee) 193 cu. in. (3160 cc) 3.63” (92 mm) 3.11” (79 mm) 2-Stage Direct Fuel Injection PCM 07 Digital Inductive 60-amp (756 watt) w/Voltage Regulator 1.62:1, 1.75:1 (SM)**, (TM)** or 1.75:1 (FM)** or w/o Electronic Multipoint Mercury Premium Plus (TC-W3) 91 Octane Minimum (R+M)/2 (96 RON) Right- or Left-hand (FM) (SM) Right-hand (TM) 20” (508 mm), 25” (635 mm) or 30” (762 mm) 505 lbs. (229 kg) (L) 505 lbs. (229 kg) (XL) 517 lbs. (235 kg) (XXL) 534 lbs. (234 kg) 2-year limited warranty for recreational boating & 3-year limited corrosion warranty. 1-year limited Mercury Product Protection Plan available.

Available on 20”standard models only. *25”walleye models at 5400-6000 RPM operating range. All models and specifications are subject to change without notice.

The GEARCASES OptiMax 300XS models fitted with the 20” midsection are available with the Torque Master and Sport Master gearcases. Both feature purpose-built housings packed with race-proven heavy-duty components. Applications include single engine bass and flats boats, as well as, catamaran and vee-bottom sport boats. The Fleet Master gearcase, standard on 25” and 30” offshore models, is designed to withstand the rigors of offshore tournament fishing in the tough salt water environment. Internal features include a 19-spline stainless steel propshaft, heavy-duty bearing carrier and double shot-peened pinion gear. The Torque Master and Sport Master gearcases are available on 20” models. The Torque Master, designed for single engine applications, is available in righthand rotation only. Sport Master and Fleet Master gearcases are available in right-hand and left-hand rotation.

The PROPELLERS Mercury Racing provides a variety of propellers designed for specific applications. Popular outboard propellers include overhub exhaust three-blade Lightning E.T., three and four-blade cleavers and the new four-blade Pro ET. Through-hub exhaust models - include the three-blade Tempest, four-blade Trophy and four-blade Bravo I propellers. Mercury Racing lab finishes each model to exact tolerances to ensure the design provides maximum efficiency and boat performance. We also offer custom propeller services. Propeller specialists work one-on-one with customers and customize their propellers to maximize performance for their specific application. Contact Mercury Racing Propeller Specialists Ron Steiner or Scott Reichow for additional information regarding our complete line of Mercury Racing propellers and our propeller customization services.


World’s Best Performing DFI 2-Strokes!

OPTIMAX 300XS KEY FEATURES New stroked and balanced crankshaft for maximum displacement and performance. ■ Extensive R & D result in Formula 1 race-based exhaust porting and reed block fuel induction design for top power. ■ New combustion chamber design enables engine to produce peak power longer at upper end of operating RPM range. ■ New PCM 07 microprocessor with 14-pin Deutsch connector harness incorporates engine ignition and SmartCraft CAN (Controller Area Network) wiring in one computer. ■ Acoustically tuned foam cowling wrap and new exhaust bucket design produces quieter running throughout the operating range. ■ Torque Master, Sport Master and new heavy-duty Fleet Master gearcases enhance the versatility of the world’s most powerful outboard! ■

In recent tests, conducted by Mercury Racing and observed by an independent agency, the OptiMax 250XS outperformed the Yamaha® 300 HPDI® low-emissions outboard in acceleration, top-speed and fuel economy.

The introduction of the OptiMax 300XS sets a new standard in DFI outboard performance. We look forward to going head-to-head with competitor outboards badged with like horsepower ratings.

www.mercuryracing.com

Part #90-889235007 • Published 02/06

©2006, Mercury Marine • All Rights Reserved Printed in U.S.A.

Mercury Racing • N7480 County Rd. UU • Fond du Lac, WI 54935 • Ph. 920-921-5330 • FAX: 920-921-6533 800-MERCURY • www.mercurymarine.com

United States • Coast Guard Auxiliary 800-368-5647 • www.cgaux.org United States • Power Squadrons 888-FOR-USPS • www.USPS.org Boat smart from the start! Take a boating education course, and get a vessel safety check for your boat. For more information, contact:

The Race Never Stops! ® #1 On The Water ™ ®

Remember: Life Vests Float. You Don’t.

®


Mercury Racing is all about our passion for perfection and the pursuit of peak performance. We have a reputation for exceeding consumer expectations in product quality and performance - something we've carried forward from the late Carl Kiekhaefer, founder of Mercury Marine, and to Mercury Racing’s President, Fred Kiekhaefer. The OptiMax 300XS continues our heritage of delivering more power and performance than competitors with the same horsepower rating.

The POWERHEAD The heart of the new 300XS is a 3.2 Liter V-6 powerhead featuring a stroked and balanced crankshaft for maximum power and performance. A dampener ensures smooth running throughout the engine operating range. New pistons have an updated profile and a composite coating for improved wear life. Airflow through the reed block fuel induction system is enhanced due to thinner reed material

The FUEL SYSTEM The 300XS features a higher air/ fuel pressure differential than production engines, enhancing running quality. Unlike other DFI systems, OptiMax uses an exclusive two-stage process. A burst of air (at 95 psi) shoots through the fuel, breaking it into a fine mist. and creating more surface area for combustion. The result is a more consistent and complete burn. The 300XS can surpass the fuel economy of many of today's large four-stroke engines. Compared with traditional two-stroke engines, the 300XS uses up to 45 percent less fuel during the same running period. The new PCM 07 microprocessor features a fuel calibration unique to the 300XS. The calibration, combined with the race-bred combustion chamber design, produces peak power for a longer period of time at the upper RPM operating range. The PCM 07 optimizes fuel, spark timing and knock control for each cylinder independently, enhancing engine running quality and performance.

developed for Formula 1 racing and the 300XS comes with a heavy-duty direct fuel injection air compressor for improved compressor reliability. The PCM 07 microprocessor operates the electronic multipoint lubrication system. The SmartCraft Control Area Network (CAN) system, a network of sensors and actuators, proactively monitors and controls multiple engine functions. It provides real-time engine data including speed, RPM, engine trim, fuel consumption and range. An integrated coil system completes an updated package of onboard electronics. The 300XS full throttle RPM range is 5400-6000 for 20” models and the 25” Walleye model and 5400-5800 for 25” and 30” models.

The MIDSECTION The 300XS is available with 20”, 25” and 30” die-cast midsections featuring an allnew exhaust system. Water jacketed exhaust is routed under water - exiting the midsection just above the gearcase cavitation plate. The routing of exhaust below the water surface, along with a foam lined cowl and attenuator for the compressor - greatly reduces the operating Dba.

S

P

E

C

Propshaft Rated HP Full Throttle RPM Range Cylinders Displacement Bore Stroke Induction System Ignition Alternator System Gear Ratio Fuel/Oil Ratio Recommended Oil Required Fuel Rotation Shaft Length Weight Warranty

**

I

F

I

C

A

T

I

O

N

S

300 (224 kW) 5400-5800 (20” models 5400-6000)* V-6 (60˚ vee) 193 cu. in. (3160 cc) 3.63” (92 mm) 3.11” (79 mm) 2-Stage Direct Fuel Injection PCM 07 Digital Inductive 60-amp (756 watt) w/Voltage Regulator 1.62:1, 1.75:1 (SM)**, (TM)** or 1.75:1 (FM)** or w/o Electronic Multipoint Mercury Premium Plus (TC-W3) 91 Octane Minimum (R+M)/2 (96 RON) Right- or Left-hand (FM) (SM) Right-hand (TM) 20” (508 mm), 25” (635 mm) or 30” (762 mm) 505 lbs. (229 kg) (L) 505 lbs. (229 kg) (XL) 517 lbs. (235 kg) (XXL) 534 lbs. (234 kg) 2-year limited warranty for recreational boating & 3-year limited corrosion warranty. 1-year limited Mercury Product Protection Plan available.

Available on 20”standard models only. *25”walleye models at 5400-6000 RPM operating range. All models and specifications are subject to change without notice.

The GEARCASES OptiMax 300XS models fitted with the 20” midsection are available with the Torque Master and Sport Master gearcases. Both feature purpose-built housings packed with race-proven heavy-duty components. Applications include single engine bass and flats boats, as well as, catamaran and vee-bottom sport boats. The Fleet Master gearcase, standard on 25” and 30” offshore models, is designed to withstand the rigors of offshore tournament fishing in the tough salt water environment. Internal features include a 19-spline stainless steel propshaft, heavy-duty bearing carrier and double shot-peened pinion gear. The Torque Master and Sport Master gearcases are available on 20” models. The Torque Master, designed for single engine applications, is available in righthand rotation only. Sport Master and Fleet Master gearcases are available in right-hand and left-hand rotation.

The PROPELLERS Mercury Racing provides a variety of propellers designed for specific applications. Popular outboard propellers include overhub exhaust three-blade Lightning E.T., three and four-blade cleavers and the new four-blade Pro ET. Through-hub exhaust models - include the three-blade Tempest, four-blade Trophy and four-blade Bravo I propellers. Mercury Racing lab finishes each model to exact tolerances to ensure the design provides maximum efficiency and boat performance. We also offer custom propeller services. Propeller specialists work one-on-one with customers and customize their propellers to maximize performance for their specific application. Contact Mercury Racing Propeller Specialists Ron Steiner or Scott Reichow for additional information regarding our complete line of Mercury Racing propellers and our propeller customization services.


Mercury Racing is all about our passion for perfection and the pursuit of peak performance. We have a reputation for exceeding consumer expectations in product quality and performance - something we've carried forward from the late Carl Kiekhaefer, founder of Mercury Marine, and to Mercury Racing’s President, Fred Kiekhaefer. The OptiMax 300XS continues our heritage of delivering more power and performance than competitors with the same horsepower rating.

The POWERHEAD The heart of the new 300XS is a 3.2 Liter V-6 powerhead featuring a stroked and balanced crankshaft for maximum power and performance. A dampener ensures smooth running throughout the engine operating range. New pistons have an updated profile and a composite coating for improved wear life. Airflow through the reed block fuel induction system is enhanced due to thinner reed material

The FUEL SYSTEM The 300XS features a higher air/ fuel pressure differential than production engines, enhancing running quality. Unlike other DFI systems, OptiMax uses an exclusive two-stage process. A burst of air (at 95 psi) shoots through the fuel, breaking it into a fine mist. and creating more surface area for combustion. The result is a more consistent and complete burn. The 300XS can surpass the fuel economy of many of today's large four-stroke engines. Compared with traditional two-stroke engines, the 300XS uses up to 45 percent less fuel during the same running period. The new PCM 07 microprocessor features a fuel calibration unique to the 300XS. The calibration, combined with the race-bred combustion chamber design, produces peak power for a longer period of time at the upper RPM operating range. The PCM 07 optimizes fuel, spark timing and knock control for each cylinder independently, enhancing engine running quality and performance.

developed for Formula 1 racing and the 300XS comes with a heavy-duty direct fuel injection air compressor for improved compressor reliability. The PCM 07 microprocessor operates the electronic multipoint lubrication system. The SmartCraft Control Area Network (CAN) system, a network of sensors and actuators, proactively monitors and controls multiple engine functions. It provides real-time engine data including speed, RPM, engine trim, fuel consumption and range. An integrated coil system completes an updated package of onboard electronics. The 300XS full throttle RPM range is 5400-6000 for 20” models and the 25” Walleye model and 5400-5800 for 25” and 30” models.

The MIDSECTION The 300XS is available with 20”, 25” and 30” die-cast midsections featuring an allnew exhaust system. Water jacketed exhaust is routed under water - exiting the midsection just above the gearcase cavitation plate. The routing of exhaust below the water surface, along with a foam lined cowl and attenuator for the compressor - greatly reduces the operating Dba.

S

P

E

C

Propshaft Rated HP Full Throttle RPM Range Cylinders Displacement Bore Stroke Induction System Ignition Alternator System Gear Ratio Fuel/Oil Ratio Recommended Oil Required Fuel Rotation Shaft Length Weight Warranty

**

I

F

I

C

A

T

I

O

N

S

300 (224 kW) 5400-5800 (20” models 5400-6000)* V-6 (60˚ vee) 193 cu. in. (3160 cc) 3.63” (92 mm) 3.11” (79 mm) 2-Stage Direct Fuel Injection PCM 07 Digital Inductive 60-amp (756 watt) w/Voltage Regulator 1.62:1, 1.75:1 (SM)**, (TM)** or 1.75:1 (FM)** or w/o Electronic Multipoint Mercury Premium Plus (TC-W3) 91 Octane Minimum (R+M)/2 (96 RON) Right- or Left-hand (FM) (SM) Right-hand (TM) 20” (508 mm), 25” (635 mm) or 30” (762 mm) 505 lbs. (229 kg) (L) 505 lbs. (229 kg) (XL) 517 lbs. (235 kg) (XXL) 534 lbs. (234 kg) 2-year limited warranty for recreational boating & 3-year limited corrosion warranty. 1-year limited Mercury Product Protection Plan available.

Available on 20”standard models only. *25”walleye models at 5400-6000 RPM operating range. All models and specifications are subject to change without notice.

The GEARCASES OptiMax 300XS models fitted with the 20” midsection are available with the Torque Master and Sport Master gearcases. Both feature purpose-built housings packed with race-proven heavy-duty components. Applications include single engine bass and flats boats, as well as, catamaran and vee-bottom sport boats. The Fleet Master gearcase, standard on 25” and 30” offshore models, is designed to withstand the rigors of offshore tournament fishing in the tough salt water environment. Internal features include a 19-spline stainless steel propshaft, heavy-duty bearing carrier and double shot-peened pinion gear. The Torque Master and Sport Master gearcases are available on 20” models. The Torque Master, designed for single engine applications, is available in righthand rotation only. Sport Master and Fleet Master gearcases are available in right-hand and left-hand rotation.

The PROPELLERS Mercury Racing provides a variety of propellers designed for specific applications. Popular outboard propellers include overhub exhaust three-blade Lightning E.T., three and four-blade cleavers and the new four-blade Pro ET. Through-hub exhaust models - include the three-blade Tempest, four-blade Trophy and four-blade Bravo I propellers. Mercury Racing lab finishes each model to exact tolerances to ensure the design provides maximum efficiency and boat performance. We also offer custom propeller services. Propeller specialists work one-on-one with customers and customize their propellers to maximize performance for their specific application. Contact Mercury Racing Propeller Specialists Ron Steiner or Scott Reichow for additional information regarding our complete line of Mercury Racing propellers and our propeller customization services.


World’s Best Performing DFI 2-Strokes!

OPTIMAX 300XS KEY FEATURES ■ New stroked and balanced crankshaft for maximum displacement and performance. ■ Extensive R & D result in Formula 1 race-based exhaust porting and reed block fuel induction design for top power. ■ New combustion chamber design enables engine to produce peak power longer at upper end of operating RPM range. ■ New PCM 07 microprocessor with 14-pin Deutsch connector harness incorporates engine ignition and SmartCraft CAN (Controller Area Network) wiring in one computer. ■ Acoustically tuned foam cowling wrap and new exhaust bucket design produces quieter running throughout the operating range. ■ Torque Master, Sport Master and new heavy-duty Fleet Master gearcases enhance the versatility of the world’s most powerful outboard!

In recent tests, conducted by Mercury Racing and observed by an independent agency, the OptiMax 250XS outperformed the Yamaha® 300 HPDI® low-emissions outboard in acceleration, top-speed and fuel economy.

The introduction of the OptiMax 300XS sets a new standard in DFI outboard performance. We look forward to going head-to-head with competitor outboards badged with like horsepower ratings.

Part #90-889235007 • Published 02/06

www.mercuryracing.com

©2006, Mercury Marine • All Rights Reserved Printed in U.S.A.

Mercury Racing • N7480 County Rd. UU • Fond du Lac, WI 54935 • Ph. 920-921-5330 • FAX: 920-921-6533 800-MERCURY • www.mercurymarine.com

United States • Coast Guard Auxiliary 800-368-5647 • www.cgaux.org United States • Power Squadrons 888-FOR-USPS • www.USPS.org Boat smart from the start! Take a boating education course, and get a vessel safety check for your boat. For more information, contact:

The Race Never Stops! ® #1 On The Water

™ ®

®

Remember: Life Vests Float. You Don’t.


Mercury OptiMax 300XS Product Literature