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the ground by hard -Brake resistance
-Abration or ruin of
wheel bearing
The wheel runs freely -The wheel bearing
need be
lubricated
-Drive chain is
too tight
2.Check the pressure of The pressure is too low
tire -Seep of tire
-Malfunction of
tire’s air valve
Pressure is normal
3.Check whether the Jamed
carburetion is jamed -Maintain of
carburetion is
not enough
Without jam
4.Speed up the engine Engine speeds up inadequate
a little -Mixed air is too
sparse or dense
-Jam of air cleaner
Engine speeds up well -Flux of full is
and check not enough
-Air intake of fuel
tank top is jamed
-Jam of muffle
5.Disassemble the spark plug Be flooded or amassed
of carbon -Maintain of spark
plug is not
enough
-The temperatare
range of using
spark plug is not
In good condition enough
6.Disassemble oil measure implement In bad condition
and check the oil level and -Oil level is
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