Gilera Nexus 500 User Manual page 84

IGNITION PROBLEM
Faulty spark plug
Faulty ignition / injection control
unit. Due to the presence of high
voltage, this element should only
be checked by an expert.
LOW COMPRESSION
Loose spark plug.
Cylinder head loose, piston gas
rings worn.
Valve stuck
HIGH CONSUMPTION AND LOW PERFORMANCE
Clogged or dirty air filter
Contact an Authorised Piaggio-
Gilera Service Centre
Contact an Authorised Piaggio-
Gilera Service Centre
Screw in the spark plug tightly
Contact an Authorised Piaggio-
Gilera Service Centre
Contact an Authorised Piaggio-
Gilera Service Centre
Try to blow out with compressed
air, otherwise replace the filter
84