Troubleshooting Guide - Ducati DBC 4600R Manual De Instrucciones

16. TROUBLESHOOTING GUIDE

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