Kioti Daedong EX35 Manual page 217

9 EX35(C)/EX40(C)/EX45(C)/EX50(C)
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This troubleshooting chart summarizes simple service items for users who are familiar with mechanical systems.
For more detailed service items, contact your local KIOTI Dealer.
ENGINE TROUBLESHOOTING
1. When engine is
difficult to start
CAUSE
Fuel is thick and doesn't flow.
Air or water mixed in fuel system.
Thick carbon deposits on orifice of
injection nozzle.
Valve clearance is wrong.
Engine oil become thick in cold
weather and engine cranks slow.
COUNTERMEASURES
Check the fuel tank and fuel filter.
Remove water, dirt and other impurities.
As all fuel will be filtered by the filter, if there should be
water of other foreign matters on the filter, replace the filter.
If air is in the fuel filter or injection lines, the fuel pump will
not work properly.
To attain proper fuel injection pressure, check carefully for
loosened fuel cap nut, etc.
Loosen air vent screw over fuel filter and fuel injection
pump to eliminate all the air in the fuel system.
This is caused when water or dirt is mixed in the fuel.
Clean the nozzle injection piece, being careful not to
damage the orifice.
Check to see if nozzle is working properly or not, if not,
install a new nozzle.
Adjust valve clearance (when the engine is cold)
inlet 0.25 mm (0.010 in.)
exhaust 0.30 mm (0.012 in.)
Change grade of oil according to the weather
(temperature).