1997-2002 Mercury Mariner 90 hp, 100 hp outboard engine service manual

Effortlessly maintain and restore your 2-stroke engine - Immediately obtain this distinct PDF: Genuine Mercury (Brunswick Corporation) Mariner upkeep and refurbishment manual. Specs and manual details: Production year(s): 1997, 1998, 1999, 2000, 2001, 2002 The following models are encompassed by this manual: Mariner 90 hp, 100 hp / Mercury (Brunswick Corporation) Manual Language: English Instant delivery/download: Your download link will appear on the checkout page after your payment is complete. Printable: Yes (with all printers) # ³ "Fix Your Outboard with Ease: Comprehensive Manual Available for Download Now!" Experience seamless maintenance and repair for your 1997-2002 Mercury Mariner 90 hp and 100 hp outboard engine with our in-depth and user-friendly manual. Our comprehensive guide covers everything from engine specs and technical details to maintenance tips and aftermarket options, ensuring you have all the information you need to keep your outboard running smoothly. Engine Specs/Technical Specs: • The 1997-2002 Mercury Mariner 90 hp engine is a 3-cylinder, 2-stroke outboard motor. • The 100 hp engine variant features a 4-cylinder, 2-stroke configuration. • Both engines have a displacement of 84.6 cubic inches (1386 cc). • The engines feature loop-charged induction for efficient fuel delivery. • Compression ratio for both engines is 6.0:1. • The 90 hp engine has a bore and stroke of 3.5 x 2.93 inches (89 x 75 mm). • The 100 hp engine has a bore and stroke of 3.5 x 3.37 inches (89 x 85 mm). • Both engines utilize a CDI ignition system for reliable starting. • The engines feature a 20-amp alternator for consistent power delivery. • Both engines have a 6.6-gallon (25 L) fuel tank capacity. • Oil injection is available on both the 90 hp and 100 hp models. • The engines come equipped with a three-blade aluminum propeller. • Both engines offer electric starting with a manual recoil backup. • The 90 hp engine has a full-throttle RPM range of 5000-5500 RPM. • The 100 hp engine has a full-throttle RPM range of 5250-5750 RPM. • The engines feature a gear ratio of 2.33:1. • The 90 hp and 100 hp engines are compatible with remote steering systems. • Both engines utilize a single-lever, side-mount control box for gear shifting. • The 90 hp engine weighs 305 lbs (138 kg), while the 100 hp engine weighs 335 lbs (152 kg). • Both engines offer power trim and tilt for ease of use. • The engines are equipped with a stainless-steel water pump housing. • Both engines utilize a thermostatically controlled cooling system. • The engines come with a 3-year limited warranty. • Both engines meet EPA and CARB emission standards. • The 90 hp and 100 hp engines are designed for use with 87 octane gasoline. Interesting Facts and Details: - The 90 hp and 100 hp Mercury Mariner engines are known for their durability and reliability. - Both engines feature a unique, compact design that optimizes space and weight distribution. - The engines utilize Mercury's exclusive SmartCraft technology for enhanced engine monitoring and diagnostics. - These engines are well-suited for a variety of applications, including fishing, water sports, and recreational boating. - The 90 hp and 100 hp engines are compatible with Mercury's Big Tiller handle for improved steering control. Maintenance Intervals and Tips: - It is recommended to change the engine oil and filter every 100 hours or annually, whichever comes first. - The fuel filter should be replaced every 300 hours or every three years. - Inspect the water pump impeller annually and replace it as needed. - Check the power trim fluid level every 100 hours and top off as necessary. - It is important to Maintenance Intervals and Tips (continued): - Grease all fittings and lubricate control cables every 100 hours or annually. - Inspect and clean the spark plugs every 100 hours and replace them as needed. - Check and adjust the throttle and shift cables annually or as required. - Inspect the propeller for damage and repair or replace it as necessary. - Make sure to use the recommended fuel and oil mixtures for optimum engine performance. Common Issues and Solutions: - Hard starting or poor idling can be caused by dirty or fouled spark plugs. Clean or replace them as needed. - Overheating issues may result from a clogged or damaged water pump impeller. Inspect and replace it if necessary. - Erratic engine performance can be due to a dirty or clogged fuel filter. Replace the filter to remedy this issue. - If the engine fails to reach its full RPM range, check the propeller for damage and replace it if required. - If you experience poor acceleration, ensure the throttle and shift cables are properly adjusted. Popular Tuning Tips and Modifications: - Install a performance propeller for improved acceleration and top-end speed. - Upgrade to a stainless-steel propeller for increased durability and performance. - Consider installing a hydrofoil stabilizer to enhance boat handling and reduce bow rise. - Upgrade the engine's reed valves to enhance throttle response and overall performance. - Opt for a performance exhaust system to increase horsepower and torque. Available Accessories and Aftermarket Options: - Mercury SmartCraft gauges for advanced engine monitoring and diagnostics. - Remote oil tank kits for ease of oil changes and maintenance. - A variety of propeller options, including stainless steel and performance models. - Engine covers to protect your outboard from the elements. - Hydraulic steering systems for improved steering response and control. Strengths: - Owners appreciate the engines' durability and reliability. - Many users praise the compact design and weight distribution. - The engines' compatibility with various applications is a plus for many owners. - Users appreciate the SmartCraft technology for easy engine monitoring. Weaknesses: - Some owners report occasional hard starting or idling issues. - A few users have experienced overheating problems, often related to the water pump impeller. Take the DIY route and purchase your outboard PDF at www.repairloader.com – tap the blue button for a secure PayPal transaction and instant access! Upon completing your payment, you'll receive an email with all the necessary download details for your Mercury Mariner OEM service manual and parts list. Your download link will also be available on the checkout page after your secure payment is processed. §

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