The Mercury Optimax, produced between 1998 and 1999, represents a significant advancement in marine engine technology. These engines are characterized by their Direct Fuel Injection (DFI) systems, DOHC valve trains, and multi-point sequential electronic fuel injection, delivering robust performance with horsepower ratings of 135 HP and 150 HP. Designed for reliability and efficiency, the Optimax series offers a powerful and dependable propulsion solution for a variety of watercraft, embodying Mercury's commitment to engineering excellence.
This comprehensive service, repair, and workshop manual provides essential information for maintaining and troubleshooting your Mercury Optimax engine. It covers critical areas such as lubrication, cooling system service, and detailed maintenance schedules. With clear instructions and technical specifications, this English-language manual is an indispensable resource for owners, mechanics, and technicians alike, ensuring optimal performance and longevity of the engine.
MERCURY 135 HP 150 HP Optimax 1998 1999 Service Manual Download! - This original MERCURY 135 HP 150 HP Optimax 1998 1999 outboard manual is a detailed file and it is illustrated with clear step-by-step instructions. - The MERCURY 135 HP 150 HP Optimax 1998 1999 outboard pdf contains help for troubleshooting and will support you how to fix your problems immediately. - The Following Models: 135HP (135 HP) 150HP (135 HP) Optimax Direct Fuel Injection (DFI) - 1998 Model 135/150 - 1999 Model 135 - 1999 Model 150 - - This highly detailed manual is very useful and contains everything you need to repair, service, restore maintain, rebuild or diagnose your MERCURY 135 HP 150 HP Optimax 1998 1999 outboard. - - This MERCURY 135 HP 150 HP Optimax 1998 1999 outboard manual is the same manual used by professional technicians, mechanics and workshops. - Perfect for all DIY persons! - You can save it on every computer, ipad, hard disc, etc. how often you need. - Our manuals are compiled in pdf format and can be opened with every pdf-reader. Some of the manuals are zipped. To unzip these manuals you need f.e. free winzip or winrar. - This official MERCURY 135 HP 150 HP Optimax 1998 1999 outboard service, repair guide, factory or workshop manual gives you the complete step by step informations on servicing, repairing and preventative maintenance. It is your essential help guide through every repair and troubleshooting procedure. - - MERCURY 135 HP 150 HP Optimax 1998 1999 Service Manual for sale - Thanks for using our instant manual download service. Despite compression the manuals/files could be very large in some cases. Please check you have enough storage space (manuals can be to 5 gb) and you have a solid and fast internet connection. Sizes of the MERCURY 135 HP 150 HP Optimax 1998 1999 outboard manual is mentioned on the page. This is not a hard copy manual / illustrated parts manual / repair guide. It is the complete download version. No CD oder DVD. - This MERCURY 135 HP 150 HP Optimax 1998 1999 outboard repair guide can be read, stored and printed on any computer running Windows, Linux or Mac. To purchase this MERCURY 135 HP 150 HP Optimax 1998 1999 outboard pdf please click on the green download button. Please safe your MERCURY 135 HP 150 HP Optimax 1998 1999 outboard manual instant after download on your hard disk, etc. We do not offer a lifetime storage space for your manual file. - Please note: You need to be connected to the internet to download this manual. You need free winzip or winrar to enlarge it. After your payment via paypal or credit card, you will have instant access to your download. - The Following Models: 135HP (135 HP) 150HP (135 HP) Optimax Direct Fuel Injection (DFI) 1998 Model 135/150 1999 Model 135 1999 Model 150 - - MERCURY 135 HP 150 HP Optimax 1998 1999 outboard pdf (How to fix...) - This is a specific and detailed pdf manual. - P.S. Repair Manuals - your Do-It-Yourself specialist for service manuals, workshop manuals, factory manuals, owner manuals and user manuals. Also operating manuals, instruction manuals, shop manuals, illustrated parts lists, maintenance manuals, technical workshop manuals and repair guide. - This MERCURY 135 HP 150 HP Optimax 1998 1999 outboard manual has been produced by the manufacturer and it offers all informations and instructions for your MERCURY 135 HP 150 HP Optimax 1998 1999 outboard - It is made in very best quality. - You can print out this manual / repair guide from any computer and also any printer. - - MERCURY 135 HP 150 HP Optimax 1998 1999 Service Manual - Please check your emails after the payment. No shipping fee! Instant manual download! - Save your money $$ by doing your own repairs! - Instant delivery - now waiting for the postman! - Grab your own copy of the MERCURY 135 HP 150 HP Optimax 1998 1999 outboard manual - Now! - Download link for the manual will appear on the checkout page after your payment is completed. Additionally a few seconds after your payment you will receive an email with your instant manual download link. You have three days after payment to download and save your manual. - Our MERCURY 135 HP 150 HP Optimax 1998 1999 outboard service manual will work on all operating systems. PC & MAC compatible. EG: Windows 97, 2000, Me, XP, Vista, Windows 7, Windows 10 - The language of this MERCURY 135 HP 150 HP Optimax 1998 1999 Service Manual is english. This MERCURY 135 HP 150 HP Optimax 1998 1999 outboard pdf has no restrictions on printing or saving/burning to disc. - Our manuals / guides are delivered as: E-Book, pdf, zip, .rar or as .exe files - Most of our manuals contains zoomable illustrations, detailed component explosions, also exploded views, breakdowns of all part numbers for all aspects and are including detailed engine component breakdowns. - This MERCURY 135 HP 150 HP Optimax 1998 1999 outboard manual is digitally delivered, there are no shipping costs. - This is the electronic download versions of the MERCURY 135 HP 150 HP Optimax 1998 1999 Service Manual. - If there is a problem with the download of your manual, please contact us. Free support. - Original MERCURY 135 HP 150 HP Optimax 1998 1999 Service Manual instant download. - SPECIFICATIONS Some of the topics you might find in a specifications sections are Overall length Overall width Weight Transom height Recommended operating range Idle speed Engine type DOHC Number of cylinders Total displacement Spark plug Fuel supply system Multi-point sequential electronic fuel injection Exhaust system Cooling system Water cooled Lubrication system Wet sump Starting system Electric Lower Unit Fuel recommendatons Outboard Motor Gear Oil Gearcase oil capacity ml Maximum tilt angle degree Transmission Forward-Neutral-Reverse Propeller shaft rotation Propeller Right-hand rotation Propeller Counter rotation Cylinder compression Engine oil pressure Viscosity rating Engine oil amounts Oil filter change Pistion Pistion Rings Thermostat operating temperature and much more. MAINTENANCE In the maintenance section you will find complete maintenance specs, maintenance charts, intervals and recomendations including step by step procedures for the following: Spark plug Fuel line Replace fuel hose Breather hose Engine oil Gear oil Lubrication Anodes & Bonding wires Battery Fuel mixture check Engine oil filter Low pressure fuel filter High pressure fuel filter Ignition timing Idle speed Tappet clearance Water pump Water pump impeller Propeller nut & pin Balancer chain Bolt & Nuts Timing Belt Inspection Lubrication Points Changing Engine Oil Oil Draining Procedure Changing Oil Filter Oil Filling and much more. GENERAL INFORMATION The gerneral information sections will usually identify the following topics and much more: Identification Numbers Tightening Torque Service Data Specfications Cylinder Number Propellers Gas (gasoline Recomendations) 87 91 92 93 Race Gas Warm-Up Recommendations. ELECTRICAL The electrial sections you will find in a service manual include electrical parts holder removal and installation, and the inspection, removal, installation, troubleshooting outline of monitor tachometer starter motor, electric starter system battery charging system Disassembly Cleaning Testing Brush Replacement Reassembly Battery Charging System Manual Start Battery Charging System Tests Testing The Battery Charging Coil Testing The Battery Charging System Testing The Rectifier/Regulator. IGNITION A short list of some information you will find in this ignition system section include Specifications Special Tools Checking Ignition Timing Type Spark Plug Firing Order Ignition Timing Charge Coil Resistance Crank Position Sensor Resistance Ignition Coil Resistance ECM Engine Speed Limiter Spark Cut-Out Reduction ignition spark ECM Low Oil Pressure Speed Control Oil Pressure Switch and more. CARBURETOR If your motor carb (carburetor) than you will find everthing you need to fully adjust the carb, rebuild, remove, inspect, and clean to factory specs. Here are just a small sample you will find in service manuals where carb models apply: Specifications Special Tools Intake Carburetor Adjustments Idle Speed Linkage Choke Carburetor Removal Carburetor Disassembly Cleaning/Inspection/Repair Carburetor Reassembly Float Height Measurement Carburetor Installation Electric Choke Models InstallationIdle rpm (Out Of Gear) Idle rpm (In Forward Gear) Wide Open Throttle rpm (WOT) Main Jet Size Pilot Jet Main Jet Size Float Height 950 ± 50 rpm 850 ± 50 rpm 45005500 5200-5700 500-1000 rpm 1200-1500 rpm 1500-2000 rpm 2200 2500 rpm 3000-3500 rpm and much more. EFI SYSTEM A short list of some topics found in the electronic fuel injection system include Specifications Fuel Injection Nozzle Fuel Injection Pump Fuel Pump Throttle Body Throttle Control Lever and Linkage High Pressure Fuel Line High-Pressure Fuel Line Fuel Cooler Fuel Hoses Fuel Rail Pressure Regulator Idle Speed Control Assembly Intake Manifold Throttle Position Sensor Low Pressure Fuel Line/Fuel Pump Fuel Filter Fuel Pump and more. POWERHEAD (POWER HEAD) The powerhead section contains everthing you will need to completly rebuild your engine block back to factory specs, some information inculdes: cylinder head cover intake manifold assembly ring gear cover and air intake power unit (powerhead) measuring pump components oil pump engine lubrication system thermostat cylinder crankshaft pistion counter balancer mechanism cylinder head assembly removal inspection installation. MID-SECTION A quick run down of main topics in this section are engine side cover driveshaft housing and oil pan swivel bracket steering bracket and clamp wather pressure valve lower unit gear housing and all inspection removal installation cleaning assembly and reassembly procedures. LOWER UNIT Some of the main topics discussed in the lower unit section include gear case, propeller lower unit gears shimming and adjustment trim tab drive shaft and oil seal housing, water pump and related items, shift guide housing propeller shaft components gear bearing propeller shaft gear housing and more. Other Chaptrs you might find in a service manual/ repair manual for your outboard motor include: ATTACHMENTS/CONTROL LINKAGE THROTTLE/SHIFT LINKAGE TILLER HANDLE MANUAL STARTER DIAGNOSTIC TROUBL © Designated trademarks and brands are the property of their respective owners. All Rights Reserved. -
MERCURY 135 HP 150 HP Optimax 1998 1999 Service Manual Download! - This original MERCURY 135 HP 150 HP Optimax 1998 1999 outboard manual is a detailed file and it is illustrated with clear step-by-step instructions. - The MERCURY 135 HP 150 HP Optimax 1998 1999 outboard pdf contains help for troubleshooting and will support you how to fix your problems immediately. - The Following Models: 135HP (135 HP) 150HP (135 HP) Optimax Direct Fuel Injection (DFI) - 1998 Model 135/150 - 1999 Model 135 - 1999 Model 150 - - This highly detailed manual is very useful and contains everything you need to repair, service, restore maintain, rebuild or diagnose your MERCURY 135 HP 150 HP Optimax 1998 1999 outboard. - - This MERCURY 135 HP 150 HP Optimax 1998 1999 outboard manual is the same manual used by professional technicians, mechanics and workshops. - Perfect for all DIY persons! - You can save it on every computer, ipad, hard disc, etc. how often you need. - Our manuals are compiled in pdf format and can be opened with every pdf-reader. Some of the manuals are zipped. To unzip these manuals you need f.e. free winzip or winrar. - This official MERCURY 135 HP 150 HP Optimax 1998 1999 outboard service, repair guide, factory or workshop manual gives you the complete step by step informations on servicing, repairing and preventative maintenance. It is your essential help guide through every repair and troubleshooting procedure. - - MERCURY 135 HP 150 HP Optimax 1998 1999 Service Manual for sale - Thanks for using our instant manual download service. Despite compression the manuals/files could be very large in some cases. Please check you have enough storage space (manuals can be to 5 gb) and you have a solid and fast internet connection. Sizes of the MERCURY 135 HP 150 HP Optimax 1998 1999 outboard manual is mentioned on the page. This is not a hard copy manual / illustrated parts manual / repair guide. It is the complete download version. No CD oder DVD. - This MERCURY 135 HP 150 HP Optimax 1998 1999 outboard repair guide can be read, stored and printed on any computer running Windows, Linux or Mac. To purchase this MERCURY 135 HP 150 HP Optimax 1998 1999 outboard pdf please click on the green download button. Please safe your MERCURY 135 HP 150 HP Optimax 1998 1999 outboard manual instant after download on your hard disk, etc. We do not offer a lifetime storage space for your manual file. - Please note: You need to be connected to the internet to download this manual. You need free winzip or winrar to enlarge it. After your payment via paypal or credit card, you will have instant access to your download. - The Following Models: 135HP (135 HP) 150HP (135 HP) Optimax Direct Fuel Injection (DFI) 1998 Model 135/150 1999 Model 135 1999 Model 150 - - MERCURY 135 HP 150 HP Optimax 1998 1999 outboard pdf (How to fix...) - This is a specific and detailed pdf manual. - P.S. Repair Manuals - your Do-It-Yourself specialist for service manuals, workshop manuals, factory manuals, owner manuals and user manuals. Also operating manuals, instruction manuals, shop manuals, illustrated parts lists, maintenance manuals, technical workshop manuals and repair guide. - This MERCURY 135 HP 150 HP Optimax 1998 1999 outboard manual has been produced by the manufacturer and it offers all informations and instructions for your MERCURY 135 HP 150 HP Optimax 1998 1999 outboard - It is made in very best quality. - You can print out this manual / repair guide from any computer and also any printer. - - MERCURY 135 HP 150 HP Optimax 1998 1999 Service Manual - Please check your emails after the payment. No shipping fee! Instant manual download! - Save your money $$ by doing your own repairs! - Instant delivery - now waiting for the postman! - Grab your own copy of the MERCURY 135 HP 150 HP Optimax 1998 1999 outboard manual - Now! - Download link for the manual will appear on the checkout page after your payment is completed. Additionally a few seconds after your payment you will receive an email with your instant manual download link. You have three days after payment to download and save your manual. - Our MERCURY 135 HP 150 HP Optimax 1998 1999 outboard service manual will work on all operating systems. PC & MAC compatible. EG: Windows 97, 2000, Me, XP, Vista, Windows 7, Windows 10 - The language of this MERCURY 135 HP 150 HP Optimax 1998 1999 Service Manual is english. This MERCURY 135 HP 150 HP Optimax 1998 1999 outboard pdf has no restrictions on printing or saving/burning to disc. - Our manuals / guides are delivered as: E-Book, pdf, zip, .rar or as .exe files - Most of our manuals contains zoomable illustrations, detailed component explosions, also exploded views, breakdowns of all part numbers for all aspects and are including detailed engine component breakdowns. - This MERCURY 135 HP 150 HP Optimax 1998 1999 outboard manual is digitally delivered, there are no shipping costs. - This is the electronic download versions of the MERCURY 135 HP 150 HP Optimax 1998 1999 Service Manual. - If there is a problem with the download of your manual, please contact us. Free support. - Original MERCURY 135 HP 150 HP Optimax 1998 1999 Service Manual instant download. - SPECIFICATIONS Some of the topics you might find in a specifications sections are Overall length Overall width Weight Transom height Recommended operating range Idle speed Engine type DOHC Number of cylinders Total displacement Spark plug Fuel supply system Multi-point sequential electronic fuel injection Exhaust system Cooling system Water cooled Lubrication system Wet sump Starting system Electric Lower Unit Fuel recommendatons Outboard Motor Gear Oil Gearcase oil capacity ml Maximum tilt angle degree Transmission Forward-Neutral-Reverse Propeller shaft rotation Propeller Right-hand rotation Propeller Counter rotation Cylinder compression Engine oil pressure Viscosity rating Engine oil amounts Oil filter change Pistion Pistion Rings Thermostat operating temperature and much more. MAINTENANCE In the maintenance section you will find complete maintenance specs, maintenance charts, intervals and recomendations including step by step procedures for the following: Spark plug Fuel line Replace fuel hose Breather hose Engine oil Gear oil Lubrication Anodes & Bonding wires Battery Fuel mixture check Engine oil filter Low pressure fuel filter High pressure fuel filter Ignition timing Idle speed Tappet clearance Water pump Water pump impeller Propeller nut & pin Balancer chain Bolt & Nuts Timing Belt Inspection Lubrication Points Changing Engine Oil Oil Draining Procedure Changing Oil Filter Oil Filling and much more. GENERAL INFORMATION The gerneral information sections will usually identify the following topics and much more: Identification Numbers Tightening Torque Service Data Specfications Cylinder Number Propellers Gas (gasoline Recomendations) 87 91 92 93 Race Gas Warm-Up Recommendations. ELECTRICAL The electrial sections you will find in a service manual include electrical parts holder removal and installation, and the inspection, removal, installation, troubleshooting outline of monitor tachometer starter motor, electric starter system battery charging system Disassembly Cleaning Testing Brush Replacement Reassembly Battery Charging System Manual Start Battery Charging System Tests Testing The Battery Charging Coil Testing The Battery Charging System Testing The Rectifier/Regulator. IGNITION A short list of some information you will find in this ignition system section include Specifications Special Tools Checking Ignition Timing Type Spark Plug Firing Order Ignition Timing Charge Coil Resistance Crank Position Sensor Resistance Ignition Coil Resistance ECM Engine Speed Limiter Spark Cut-Out Reduction ignition spark ECM Low Oil Pressure Speed Control Oil Pressure Switch and more. CARBURETOR If your motor carb (carburetor) than you will find everthing you need to fully adjust the carb, rebuild, remove, inspect, and clean to factory specs. Here are just a small sample you will find in service manuals where carb models apply: Specifications Special Tools Intake Carburetor Adjustments Idle Speed Linkage Choke Carburetor Removal Carburetor Disassembly Cleaning/Inspection/Repair Carburetor Reassembly Float Height Measurement Carburetor Installation Electric Choke Models InstallationIdle rpm (Out Of Gear) Idle rpm (In Forward Gear) Wide Open Throttle rpm (WOT) Main Jet Size Pilot Jet Main Jet Size Float Height 950 ± 50 rpm 850 ± 50 rpm 45005500 5200-5700 500-1000 rpm 1200-1500 rpm 1500-2000 rpm 2200 2500 rpm 3000-3500 rpm and much more. EFI SYSTEM A short list of some topics found in the electronic fuel injection system include Specifications Fuel Injection Nozzle Fuel Injection Pump Fuel Pump Throttle Body Throttle Control Lever and Linkage High Pressure Fuel Line High-Pressure Fuel Line Fuel Cooler Fuel Hoses Fuel Rail Pressure Regulator Idle Speed Control Assembly Intake Manifold Throttle Position Sensor Low Pressure Fuel Line/Fuel Pump Fuel Filter Fuel Pump and more. POWERHEAD (POWER HEAD) The powerhead section contains everthing you will need to completly rebuild your engine block back to factory specs, some information inculdes: cylinder head cover intake manifold assembly ring gear cover and air intake power unit (powerhead) measuring pump components oil pump engine lubrication system thermostat cylinder crankshaft pistion counter balancer mechanism cylinder head assembly removal inspection installation. MID-SECTION A quick run down of main topics in this section are engine side cover driveshaft housing and oil pan swivel bracket steering bracket and clamp wather pressure valve lower unit gear housing and all inspection removal installation cleaning assembly and reassembly procedures. LOWER UNIT Some of the main topics discussed in the lower unit section include gear case, propeller lower unit gears shimming and adjustment trim tab drive shaft and oil seal housing, water pump and related items, shift guide housing propeller shaft components gear bearing propeller shaft gear housing and more. Other Chaptrs you might find in a service manual/ repair manual for your outboard motor include: ATTACHMENTS/CONTROL LINKAGE THROTTLE/SHIFT LINKAGE TILLER HANDLE MANUAL STARTER DIAGNOSTIC TROUBL © Designated trademarks and brands are the property of their respective owners. All Rights Reserved. -
