Yamaha TT-R125W Manuel D'atelier Du Proprietaire page 340

CYLINDER AND PISTON

ASSEMBLY AND INSTALLATION

Piston ring and piston

Piston rings

(onto the piston)

Be sure to install the 2nd piston ring so that

the manufacturer's mark or number are

located on the upper side of the ring.

Lubricate the piston and piston rings liberally

with engine oil.

2. Position:

Offset the piston ring end gaps as

a: Top ring end

b: 2nd ring end

c: Oil ring end (upper)

d: Oil ring end (lower)

Piston pin 2

Piston pin clips 3

Apply engine oil onto the piston pin, piston

rings and piston.

Be sure that the arrow mark a on the piston

points to the exhaust side of the engine.

Before installing the piston pin clip, cover the

crankcase with a clean rag to prevent the

piston pin clip from falling into the crankcase.

When removing the piston pin clip, pop it out

using the small opening b.

4. Lubricate:

Piston rings

Inside of cylinder

Apply a liberal coating of engine oil.