4. Maintenance
USE AND MAINTENANCE MANUAL CHAPTER 4
MAINTENANCE2-Strokes - Edition 00 / 2023
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2
3
1
1
– Remove the cylinder nuts “1” in sequence and following
a crossed pattern, then remove the cylinder from the
crankcases;
– Remove a pin seeger “2”, then remove the pin “3”, the
piston and roller bearing of the connecting rod head;
– Remove piston ring from the piston.
Before removing the seeger, cover the crankcase
with a clean cloth to prevent the seeger from falling
into it.
Do not use a hammer to pull out the pin, in case the
operation is difficult to use a special puller.
Head check
– Remove carbon deposits using a rounded scraper;
Take care to avoid damaging the spark plug threads.
Do not use a sharp instrument. Avoid scratching the
aluminum.
– Check the water circuit, if there is encrustation and/or rust
replace the head;
– Measure the deformation of the head, if it does not conform
to specifications, level the head.
Maximum permissible deformation:
less than 0.03 mm (0.0012 in)
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