Husqvarna 120 Workshop Manual page 48
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Also See for 120:
- Operator's manual (328 pages) ,
- Operator's manual (50 pages) ,
- Operator's manual (76 pages)
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Repair Instructions
4
Remove the circlips and press out the gudgeon pin.
Remove the piston. See figure 58.
5
Remove the gudgeon pin bearing (the needle bea-
ring) using a pliers. See figure 58.
6
Replace with a new bearing.
Cleaning and inspection of the cylinder
Clean all components, scrape off all gasket re-
mains and soot from the following areas:
•
Piston crown
•
Top of the cylinder bore (inside)
•
Cylinder exhaust port
•
Base of the cylinder and/or crankcase
Check the following:
•
That the cylinder's surface coating is not worn.
Especially the upper part of the cylinder.
•
That the cylinder does not have any chafe or
cutting marks. See figure 59.
•
That the piston is free of score marks. Minor
scratches can be polished off using fine emery
paper.
•
That the piston ring is not burnt into its groove.
•
Measure the wear on the piston rings. This
must not exceed 1 mm. See figure 60. Use the
piston to push the piston ring downward.
•
That the gudgeon pin bearing is intact.
•
That the intake bellows is intact.
48
- English
Fig 58
Fig 59
Fig 60
- Quick Links:
- Carburettor
- Tank Unit
- Replacing the Fuel Filter
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