APRILIA MSS Mana GT ABS Service Station Manual page 202

Engine
- Check that the centring dowel is correctly fitted
and push the cylinder until it stops.
Selecting the base gasket
- First fit the piston into the cylinder, without any base gasket.
- Fit a dial gauge on the specific tool with the short union, as shown in the figure.
Specific tooling
020714Y Dial gauge mounting
- With a contrasting surface, reset the dial gauge
with a preloading of a few millimetres.
- Finally fix the dial gauge.
- Check the perfect sliding of the feeler pin.
- Fit the tool on the cylinder without changing the
dial gauge position.
- Lock the tool with the original head fixing nuts.
- Rotate the crankshaft up to TDC (the reversal
point of the dial gauge rotation).
- Measure the deviation from the reset value.
ENG - 202
MSS Mana GT ABS