Lambretta Piston Ring Location

In theory, with a new piston, the top arrow normally points to the exhaust outlet.  However, some pistons and many old Lambrettas had no markings in this area.

The important thing to review in this area is that the rings do not ride over any of the holes inside the cylinder.

With this in mind, please see sample images below of one of my LD125 cylinders with two rings and there location of where they are sliding in between:

Notes: ( Lambretta Raymond Broad – Page 35) The ring stops should be fitted away from the exhaust port to avoid and serious damage resulting.

LD125 (2x rings)

Piston Ring Useful Info & You Tube Clips

• Piston and Piston Rings
• Wiki
• Scooter Help
• The Correct Way to Point Piston Arrow On A 2 Cycle engine
• Piston Rings & Blowby – Explained
• 2 Stroke Flow – Filling the cylinder – Part 1
• 1 TWO STROKE PISTONOLOGY = TUTORIAL
• (2)- TWO STROKE PISTONOLOGY = TUTORIA
• (3)- TWO STROKE PISTONOLOGY = TUTORIAL
• How Two Stroke Engine Works

Later models information

• MB Scooters