Yamaha YZ250FM 2021 Owner's Service Manual

SAFETY INFORMATION1-2dents are the result of head injuries. The use ofa safety helmet is the single most critical factorin the prevention or reduction of head injuries.1. Always wear an approved helmet.2. Wear a face shield or goggles. Wind in yourunprotected eyes could contribute to an im-pairment of vision that could delay seeing ahazard.3. The use of a jacket, heavy boots, trousers,gloves, etc., is effective in preventing or re-ducing abrasions or lacerations.4. Never wear loose-fitting clothes, otherwisethey could catch on the control levers, foot-rests, or wheels and cause injury or an acci-dent.5. Always wear protective clothing that coversyour legs, ankles, and feet. The engine or ex-haust system become very hot during or afteroperation and can cause burns.Avoid Carbon Monoxide PoisoningAll engine exhaust contains carbon monoxide, adeadly gas. Breathing carbon monoxide cancause headaches, dizziness, drowsiness, nau-sea, confusion, and eventually death.Carbon Monoxide is a colorless, odorless, taste-less gas which may be present even if you donot see or smell any engine exhaust. Deadly lev-els of carbon monoxide can collect rapidly andyou can quickly be overcome and unable to saveyourself. Also, deadly levels of carbon monoxidecan linger for hours or days in enclosed or poorlyventilated areas. If you experience any symp-toms of carbon monoxide poisoning, leave thearea immediately, get fresh air, and SEEK MED-ICAL TREATMENT.1. Do not run engine indoors. Even if you try toventilate engine exhaust with fans or openwindows and doors, carbon monoxide canrapidly reach dangerous levels.2. Do not run engine in poorly ventilated or par-tially enclosed areas such as barns, garages,or carports.3. Do not run engine outdoors where engine ex-haust can be drawn into a building throughopenings such as windows and doors.Genuine Yamaha AccessoriesChoosing accessories for your vehicle is an im-portant decision. Genuine Yamaha accessories,which are available only from a Yamaha dealer,have been designed, tested, and approved byYamaha for use on your vehicle.Many companies with no connection to Yamahamanufacture parts and accessories or offer oth-er modifications for Yamaha vehicles. Yamahais not in a position to test the products that theseaftermarket companies produce. Therefore,Yamaha can neither endorse nor recommendthe use of accessories not sold by Yamaha ormodifications not specifically recommended byYamaha, even if sold and installed by a Yamahadealer.Aftermarket Parts, Accessories, and Modifi-cationsWhile you may find aftermarket products similarin design and quality to genuine Yamaha acces-sories, recognize that some aftermarket acces-sories or modifications are not suitable becauseof potential safety hazards to you or others. In-stalling aftermarket products or having othermodifications performed to your vehicle thatchange any of the vehicle’s design or operationcharacteristics can put you and others at greaterrisk of serious injury or death. You are responsi-ble for injuries related to changes in the vehicle.Keep the following guidelines in mind, as well asthose provided under “Loading” when mountingaccessories.1. Never install accessories that would impairthe performance of your motorcycle. Careful-ly inspect the accessory before using it tomake sure that it does not in any way reduceground clearance or cornering clearance, lim-it suspension travel, steering travel or controloperation.• Accessories fitted to the handlebar or thefront fork area can create instability due to im-proper weight distribution. If accessories areadded to the handlebar or front fork area,they must be as lightweight as possible andshould be kept to a minimum.• Bulky or large accessories may seriously af-fect the stability of the motorcycle. Wind mayattempt to lift the motorcycle, or the motorcy-cle may become unstable in cross winds.• Certain accessories can displace the opera-tor from his or her normal riding position. Thisimproper position limits the freedom of move-ment of the operator and may limit controlability, therefore, such accessories are notrecommended.2. Use caution when adding electrical accesso-ries. If electrical accessories exceed the ca-pacity of the motorcycle’s electrical system,an electric failure could result, which couldcause a dangerous loss of lights or enginepower.