Inspecting The Cylinder Head - PIAGGIO Runner 125 Service Station Manual

Engine

Inspecting the cylinder head

- Using a trued bar and feeler gauge check that the
cylinder head surface is not worn or distorted.
Maximum allowable run-out: 0.05 mm
- Check that the camshaft and the rocker pin ca-
pacities exhibit no wear.
- Check that the cylinder head cover surface, the
intake manifold and the exhaust manifold are not
worn.
Characteristic
bearing «A»
Ø 12.000 - 12.018 mm
bearing «B»
Ø 20.000 ÷ 20.021 mm
bearing «C»
Ø 37.000 - 37.025 mm
ENG - 162
Runner 125 - 200