Husqvarna TR 650 TERRA 2013 Workshop Manual page 23

TR 650 TERRA 2013 - TR 650 STRADA 2013
Trouble
Engine runs irregularly at higher speed
Engine has no or insufficient performance
Engine knocks or pings
TROUBLESHOOTING
Possible causes
Fuel pressure too low
Leak air
Camshafts worn
For other possible causes see also "Engine
starts over but does not start engine or
starts hard"
Leak air, intake system leaking
Spark plugs not according to specifications
or defective
Valve clearance not according specification
Valve timing incorrect
Ignition coil supplies insufficient ignition
voltage
Ignition unit defective, ignition timing incor-
rect
Valves leaking
Clutch slipping
Fuel pressure too low
Air filter dirty
Exhaust system defective
Excessive Blow-by gases, Piston rings and/
or cylinder bore worn
Engine oil not according to specifications
Fuel of too low octane number
Spark plugs not according to specifications
or defective
Leak air, intake system leaking
Ignition unit defective, ignition timing incor-
rect
C.3
Remedy
Check fuel pressure sensor, fuel pump and
fuel supply
Check / replace intake socket
Check and replace if necessary
Check / replace intake socket
Replace spark plug
Adjust valve clearance according to speci-
fication
Adjust position of camshaft gears
Check / replace ignition coil
Check / replace crank position trigger and
ECU
Exchange valves, rework valve seats
See remedies "clutch is slipping".
Check fuel pressure sensor, fuel pump and
fuel supply
Exchange
Exchange
Exchange piston rings and/or cylinder
Exchange engine oil
Use fuel of specified octane number (min.
ROZ 95)
Replace spark plug
Check / replace intake socket and intake
system
Check / replace crank position trigger and
ECU
Manuale d'officina Ed. 09-2012