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General| Brand | Yamaha |
|---|---|
| Model | YFM 90 2021 |
| Category | Offroad Vehicle |
| Language | English |
Key safety advice for operating the ATV, emphasizing manual study and warnings.
Guidance for parents on ATV safety for children, stressing supervision and assessment.
Explains the safety alert symbol, "WARNING", "NOTICE", and "TIP" notations for safe operation.
States the ATV is for competition use on closed courses only and not for general public use.
Details on locating and recording vehicle identification and model label information.
Emphasizes understanding all labels for safe operation and advises on label replacement.
Lists key safety warnings including proper instruction, speed, terrain, PPE, and substance use.
Provides essential riding practices like speed control, terrain awareness, and proper technique.
Illustrates and labels key components visible from the left and right sides of the ATV.
Illustrates and labels the various controls located on the handlebars of the ATV.
Explains the ON/OFF positions of the main switch and the function of indicator lights.
Details the operation of engine stop, start switches, and the throttle lever.
Details how to adjust the vehicle speed limiter screw to control maximum speed and power.
Explains the operation of front, rear, and parking brake levers for control and securing the ATV.
Explains the function of the drive select lever for shifting between forward, neutral, and reverse.
Details the procedure for using the kickstarter to start the engine, especially when the battery is low.
Provides crucial safety instructions for refueling to prevent fires and explosions.
Advises checking fuel level and proper refueling procedures to avoid spills and damage.
Specifies recommended unleaded gasoline types, octane ratings, and ethanol content limits.
Explains the OFF, ON, and RES positions of the fuel cock lever and their functions.
Describes how to use the starter (choke) lever to enrich the air-fuel mixture for cold starts.
Covers seat access and adjusting front shock absorber spring preload for ride comfort.
Covers critical checks for fuel, engine oil, transmission, and brakes before operating the ATV.
Ensures smooth operation of throttle, cables, drive chain, tires, and brake levers.
Verifies chassis fastener tightness and instrument/switch functionality.
Covers checks for fuel, engine oil, transmission, and brake system operation.
Ensures proper operation of throttle, drive chain condition, and tire specifications.
Details how to check and adjust tire air pressure correctly for optimal performance and safety.
Lists approved tire sizes and warns against using non-approved aftermarket tires.
Provides a step-by-step guide for starting the engine when it is cold.
Explains starting a warm engine and procedures/warnings for shifting into and operating in reverse.
Outlines essential engine break-in procedures for the first 320 km or 20 hours of operation.
Details standard parking steps and specific safety precautions for parking on inclines.
Recommends genuine accessories and warns about potential hazards of aftermarket parts.
Specifies the maximum load capacity and guidance for securely loading cargo and accessories.
Provides an overview of general riding instructions suitable for all types of riding.
Stresses familiarizing with the ATV and practicing techniques before attempting difficult maneuvers.
Advises rider training, riding within skill limits, and avoiding excessive speed.
Explicitly warns against operation by children under 10 and notes risks with larger engine sizes.
Lists mandatory protective gear and highlights risks of not using a helmet or eye protection.
Warns against operating the ATV under the influence of alcohol or drugs due to impaired judgment.
Stresses inspecting the ATV before riding to ensure safe operating condition.
Explains speed limiter function and recommends use for new riders to limit speed and power.
Advises on safe loading and cautious use of accessories, noting potential handling changes.
Warns against improper installation or use of accessories, citing potential handling changes.
Warns about fire hazards near the hot exhaust and burn risks from touching it.
Strongly warns against riding on paved surfaces due to severe impact on handling and control.
Discusses riding on unpaved public roads, emphasizing local laws and other vehicles.
Advises caution on rough, slippery, or loose terrain, stressing skill development and hazard awareness.
Instructs not to ride in posted "no trespassing" areas or on private property without permission.
Details proper turning procedures, emphasizing low speeds, body positioning, and throttle control.
Explains how to climb hills safely, including weight shift, throttle control, and terrain assessment.
Provides guidelines for descending hills safely, focusing on weight shift, speed, and braking.
Details how to cross slopes safely, including weight positioning and steering adjustments.
Advises on safe water crossing, path selection, and post-crossing checks for brakes and air filter.
Provides guidance on riding over obstacles and rough terrain, emphasizing caution and proper procedures.
Explains how to control skidding and sliding, and practice safe techniques on various surfaces.
Highlights the importance of inspection, adjustment, and lubrication for safety and efficiency.
Warns about potential hazards when performing maintenance on a running or hot engine.
Instructs on where to store the owner's manual and the provided tool kit.
Provides a schedule for checking and maintaining emission control system components.
Details the schedule for general maintenance and lubrication of various ATV parts.
Details spark plug removal and inspection for engine condition diagnosis.
Lists spark plug specs and introduces engine oil level checking.
Details the steps for accurately checking the engine oil level using the dipstick.
Provides a step-by-step guide for draining, cleaning the strainer, and refilling engine oil.
Explains the benefits and development of Yamalube engine oils for Yamaha engines.
Details the steps for changing the transmission oil, including draining and refilling.
Outlines cleaning the air filter element, including safety warnings for solvents.
Describes how to remove and clean the spark arrester to remove carbon deposits.
Warns about carburetor adjustment complexity and details idling speed check/adjustment.
Explains how to adjust the throttle lever free play for proper operation and safety.
Notes valve clearance requires dealer service and brake service needs professional knowledge.
Explains how to check front and rear brake shoe wear by examining adjusting bolt/nut positions.
Details the steps to adjust the free play in the front brake lever for optimal control.
Explains how to adjust the free play in the rear brake lever for proper braking.
Details how to check and adjust the drive chain slack to the correct tension.
Provides instructions on cleaning and lubricating the drive chain, including warnings about lubricants.
Emphasizes checking control cables and lubricating brake lever pivots for smooth operation.
Covers checking wheel hub bearings and lubricating front arm pivots.
Details lubrication of front knuckle pivots and steering shaft (dealer recommended).
Covers battery maintenance, lead connection checks, cleaning, and recharging.
Details fuse replacement, emphasizing correct amperage and safety warnings.
Outlines the steps to safely remove a wheel from the ATV.
Describes the correct procedure for installing a wheel, including bolt tightening.
Provides general advice for troubleshooting issues and stresses using genuine Yamaha parts.
Guides through troubleshooting common engine starting problems related to fuel, battery, ignition, and compression.
Details thorough ATV cleaning, including warnings about water pressure and brake checks.
Provides guidance for short-term storage and detailed preparation steps for long-term storage.
Lists physical dimensions, weight, loading capacities, and engine specifications of the ATV.
Details electrical system components and provides a CO2 emissions statement for Europe.
