31required range. Adjustment of tire airpressure shall be made under cold statusof tire.Tire air pressure;Front wheel: 225kPaRear wheel: 225kPaOuter Cover Pattern of TireThe driving stability will reduce when driving amotorcycle with excessively worn tire, whichmay possible result in out - of control. When theouter cover pattern depth on the front wheel isnot more than 1.6mm, we recommend that youpreferably replace the outer cover of the tire.Replace the tire with a new one if the outer coverpattern depth on the rear tire is not more than2mm.Warning:For the tires of your motorcycle, their standardshall be as follows:Front wheel: 90 / 90 - 18Rear wheel: 120 / 80 - 16Use of the tires incompliance with thestandard may possibly result in problems. Wesincerely recommend that you select standardtires.The tire air pressure is very important fornormal performance and driving safety ofmotorcycle. Frequently examine wear and airpressure of tire.TroubleshootingIf the engine fails to start, please examine itaccording to the following procedures to findcauses:1. Oil level in the fuel oil tank;2. Whether the oil flows to the carburetor fromthe oil plug;3. Shut off the oil from the carburetor and changethe oil plug over the ON position to whethergasoline flows out from the pipe.4. If making sure that fuel has already reachedthe carburetor, please examine the ignitingsystem.Warning:Don’t let fuel flow on the ground, which shouldbe collected into the container. Don’t let fuelapproach the high - temperature engine andexhaust pipe. Keep away from open flame orheat source.No Smoking. Examine the fuel system in anopen space.1. Remove the spark plug and connect it withhigh - voltage wire again.2. Change the igniting switch over ON positionand place the shutdown switch of engine onposition to make the spark plug closelyface toward the engine and start the engine.If the igniting system cannot normally work,here blue spark will flash across spark plugclearance. If no spark can be found, havethe authorized dealer repaired.