© 2004 Dano’s Bike Shop
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4. Install the lower piston ring (which is flat black in color) onto the lower
groove in the piston. After the lower ring has been installed, install the
upper ring, which is shiny in appearance. Note that the gap opening on
each ring faces the opposite direction.
5. Lightly coat the wrist pin with clean motor oil.
6. Install the piston onto the crankshaft and secure it into place with the wrist
pin. Make sure that the “IN” marking on the piston faces upwards.
7. Carefully install the second c-clip onto the piston to lock it into place. Once
again, compress the c-clip just enough to secure it into the piston. Note the
position of the installed c-clip.