Ducati DBC 4600R, Owner'S Manual

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47
English
Owner’s manual
DBC 4600
16. TROUBLESHOOTING GUIDE
1. Failure to start
Problem Probable cause Remedy
Cylinder compress
pressure normal
Spark plug spark
normal
Fuel system abnormality
These is no fuel in tank fuel
filter obstruct
Add fuel in tank clean fuel filter
Fuel system
normal
Fuel
Fuel is too dirty there
is water in fuel there is
too much fuel in cylinder
mixture ratio is improper
Instead fuel
tear down spark plug and dry it
mixture proration
Fuel system normal
High voltage
wire spark
normal
Spark plug
Spark plug fouled with oily
eposits spark plug insulation
deposits spark gap is too
large or small.
Clean the oily
deposits replace spark plug
adjust spark gap (0.6-0.7)mm
High voltage wire spark
abnormality High voltage wire breachor
break off coil looseness
Replace or tighten.
Fule system
normal Ignition system
normal
Compress press is shortage
Piston ring attrite.
piston ring is breaked
Piston ring cementation.
Spark plub looseness
conjoint surface of the
cylinder and crank cass leak
Replace a new
replace eliminate tighten
eliminate
Compress normal
High voltage wire and spark
plug contact badness stop
switch failure or short circuit
Tighten the spark plug
cap repair or replace
2.Low output
Problem Probable cause Remedy
Flameout when speedup the smoke is thin
carburetor spout backward. Fuel filter obstruct fall short of fuel muffler
fouled with oily deposits. Clean fuel filter, clean fuel road, adjust carburetor
clean the oily deposits.
Compress press is shortage. Piston, piston ring, cylinder attrite. Replace piston, piston ring.
Engine leak.
Conjoint surface of the
cylinder and crank cass leak.
Repair.
The end of two crank shaft leak. The seal is bad. Replace seal.
Engine overheats
burning room fouled with
oily deposits.
Avoid use it for long time, high speed and heavy
load clean the oily deposits.
3. Engine running unstable
Problem Probable cause Remedy
There are knock sound in engine.
Piston, piston ring, cylinder attrite piston pin,
piston attrite
bearing of crank shaft attrite. Replace piston, piston ring
replace piston pin, piston
replace bearing.
There are metal knock sound.
Engine overheats burning room fouled with
oily deposits gasoline branded is unfit.
Avoid use it for long time,
high speed and heavy load
clean the oily deposits replace require
branded octane.
Engine ignition break off.
There is water in fuel spark gap is wrong coil
gap is wrong.
Instead fuel
adjust spark gap (0.6-0.7)mm
adjust coil gap (0.3-0.4)mm
4. The engine suddenly stopped
Problem Remedy
Fuel is use up spark plug fouled with oily deposits and short circuit high
voltage wire fall off.
Add fuel
Clean the oily deposits
Connect