APRILIA RST mille Futura 2001 Service Manual page 329

GENERAL INFORMATION
DEFECT
The clutch does not
disengage
The clutch sticks during
engagement
The gearbox does not
engage, or has trouble
engaging
The gears disengage
during start-up or hard
acceleration
Spark plugs overheated,
burnt out or dirty
The battery alternator is
not charged or is charged
incorrectly
8
- 7 -
00
SYMPTOM AND POSSIBLE CAUSES
Clutch fluid reservoir level
Motor oil does not meet specifications
Clutch discs stuck together
Clutch discs or support plate warped
Clutch control hydraulic system faulty
Clutch housing worn
Clutch discs worn or warped
Clutch disc guide grooves inside clutch housing worn
Disc guide grooves in clutch disc hub worn smooth
Thrust-bearing lands of the clutch housing or support
plate worn
Dogs and recesses in the various gears worn
Transmission shafts worn
Selector shaft gearshift mechanism faulty
The gearshift forks are worn or bent
For other possible causes see the subsection entitled (The clutch does not
disengage)
Gearbox gears worn
The gearshift forks are worn or bent
Detent springs worn out or broken
Gears do not change smoothly or completely; the
gearshift is bent or incorrectly adjusted.
Spark plugs not to spec
Spark plugs loose
Intake coupling or intake system leaking
Fuel intake system faulty
Faulty battery
Voltage regulator faulty
Open, short circuit, or grounding of alternator windings
Cables broken or short-circuited, or loose connections
RST mille
USA
REMEDY
Check
Use motor oil that meets
specifications
Clean or replace (*)
Replace (*)
Replace
Replace (*)
Replace (*)
Replace the clutch housing
(*)
Replace the disc hub (*)
Replace (*)
Replace (*)
Replace (*)
Repair or replace (*)
Replace (*)
Replace (*)
Replace (*)
Replace (*)
Always press the pedal all
the way down when shifting
gears; replace the gearshift
(*)
Replace
Tighten
Replace
Repair or replace
Replace the battery
Replace
Replace
Repair, replace or tighten
Release 00/2002 - 03