Farr 400UTV - Page 144

8-50
Table5: Check and Solution of Common Problems in Engine System
S/N
Problems
Solutions
1
Idle speed can not be
adjusted
1. Check the throttle cable for seizure
2. Check the adjustment knob of carburetor for damage or
wear
3.Check the needle of carburetor to see if it can be placed
to the bottom
2
Idle speed is not stable
1. Check if the high-voltage wire is in poor contact.
2. Check if the CDI s faulty
3
Power performance is
falling
1. Check if the carburetor is blocked.
2.Check and clean core of air cleaner
3.Check muffler for partly block and clean spark arrestor
4
Popping in engine
1. Check air cleaner and admission line for leak.
2.Check the connection joint of exhaust pipe with engine
or muffler for leak
3.Check the grade of gasoline to see if it’s too low
5
Engine is difficult to start
at low temperature
1.Check if the battery voltage goes down when
temperature goes down
2.If the temperature is under -18℃,have the vehicle placed
in warmer place for start.