Coleman POWERSPORTS HS360ATV, Owner'S Manual

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8-55 Periodic Maintenance and Adjustment
Table5: Check and Solution of Common Problems in Engine System
S/N Problems Solutions
1 Idle speed is not stable
1.Check battery for specified voltage.
2.Check rectifier output for specified voltage.
2
Power performance
diminishing
1.Check to make sure both cylinders are working.
2.Check gasoline nozzle for blockage.
3.Check and clean core of air cleaner.
4.Check muffler for blockage and clean spark arrestor.
3 Popping in engine
1. Check air cleaner and admission line for leak.
2.Check for leaks in the connection joint of exhaust pipe
with engine. Inspect muffler for leaks
3.Check to make sure fuel has the proper octane rating and
that the fuel is not too old.
4
Engine is difficult to start
at low temperature 1.Check if the battery voltage goes down when
temperature goes down.