Massimo MSU 300 - Page 28

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performance
is bad.
2.Electric apparatus
system happens
malfunction
①Ignition time is too early or
late
②Spark is too weak or fire is
cut off
Adjust ignition time
Check by the sequence
from spark plug to
magnetoelectric machine
3.Air routine
happens
malfunction
①Blending gas is too thick or
thin
②Engine leaks air
③Muffler has been blocked
Adjust carburetor
Check and repair
Unblock
（II）Malfunction in transmission system
Vehicle speed
does not
increase by
engine speed
Transmission
system
①Shift belt slips
②Speed adjusting plate
abrasion is too much
③Speeding adjusting plate
slipping is blocked
④Spring force of adjuster is
short
Change
Change
Repair or Change
Repair or Change
Out of gear
Reverse gear device
①Self-locking spring is too
soft or broken off
②Gear of gear linking cover
is abraded to tapered
③Mesh length of gear linking
cover is short
④Self-locking slot of gear
shifting shaft has been
abraded
⑤Mesh of gear and linking
cover is not to position
Adjust or Change
Change
Adjust or Change
Repair or Change
Adjust, Repair or
Change
（III）Malfunction in steering system, suspension and steering organization
Running is
leaning
Running system
①Air pressure in left and
right wheel is different
Adjust air pressure in tire