- 26 -
Maintenance
B
Maintenance
Timing chain, mobile timing chain guide and timing
chain tensioner
Timing chain and mobile timing chain guide:
Check
g Every
12000
kilometres
Substitute
g Every 36000 kilometres
Timing chain tensioner:
Check / substitute
g Every 12000 kilometres
To disassemble these parts and not being a part of nor-
mal maintenance, it is necessary to proceed as
described in the overhaul section of the F4 workshop
engine manual (Part. Cod. 8000B4302).
SPARK PLUGS
Check/substitute
g
At 6000 kilometres and then
every 12000 kilometres
Substitute g Every 12000 kilometres
The following components must be removed to accede
to the spark plugs:
• Under-engine fairing • Tail unit
• Left fairing side panel • LH fuel tank side panel
• Right fairing side panel • RH fuel tank side panel
• Cupolino • Fuel tank
• RH wire harness cover • LH airbox side panel
• LH wire harness cover • LH airbox side panel
• Left air intake conduit • Airbox
• Right air intake conduit
- F4 MY10 -> MY12:
Remove the plug-top coil fixing plate.
Pull out the four plug-top coils.
Remove the spark plugs utilising the appropriate 16
mm hexagonal spark plug spanner.
- F4 MY13:
Remove the plug-top coil fixing screws.
Pull out the four plug-top coils.
Remove the spark plugs utilising the appropriate 16
mm hexagonal spark plug spanner.