48 - English
Repair Instructions
7.44 Dismantling the piston and cylinder
1. Dismantle:
• The cylinder cover
• The carburettor (see “Dismantling the
carburettor”)
• The muffler
• The vibration element
• The spark plug cap
• The intake system
2. Unscrew the cylinder’s four screws and
carefully lift away the cylinder and the gasket.
See figure 60.
7.45 Cleaning and inspection of the
cylinder
Clean all components, scrape off all gasket remains
and soot from the following areas:
• The piston crown
• The top of the cylinder bore (inside)
• The cylinder exhaust port
• The base of the cylinder and/or crankcase
Fig 60
Fig 61
3. Cover over the crankcase opening.
4. Remove the circlips for the gudgeon pin and
press out the gudgeon pin. The lift off the
piston. See figure 61.
5. Remove the gudgeon pin bearing (the needle
bearing) using a pliers. See figure 61. Replace
with a new bearing.
NOTE!
Take care to prevent any dirt and foreign
particles from entering the crankcase.
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