2005 Yamaha Motorsports Bruin 250 Owners Manual - Page 58

EBU00207 EBU02092 To decelerate: When slowing down or stopping, release the throttle and apply the brakes smoothly and evenly. As you slow down, shift to a lower gear. Be sure that the engine has sufficiently slowed before engaging a lower gear. Improper use of the brakes or shifting can cause the tires to lose traction, reducing control and increasing the possibility of an accident. WARNING POTENTIAL HAZARD Engaging a lower gear when the engine speed is too high. WHAT CAN HAPPEN The wheels could stop rotating. This could cause loss of control, an accident and injury. It could also cause engine or drive train damage. HOW TO AVOID THE HAZARD Make sure the engine has sufficiently slowed before shifting to a lower gear. 6-7 Engine break-in There is never a more important period in the life of your machine than the period between zero and 20 hours. For this reason, we ask that you carefully read the following material. Because the engine is brand new, you must not put an excessive load on it for the first several hours of running. During the first 20 hours, the various parts in the engine wear and polish themselves to the correct operating clearances. During this period, prolonged full throttle operation or any condition which might result in excessive engine heating must be avoided. However, momentary (2-3 seconds maximum) full throttle operation under load does not harm the engine. Each full throttle acceleration sequence should be followed with a substantial rest period for the engine by cruising at lower r/min so the engine can rid itself of the temporary build up of heat.