Piston ring installation steps are as follows:
1. Clean the piston ring groove;
2. Install the piston ring;
Note:
(1) During installation, the piston and piston ring should
be prevented from being damaged;
(2) when installing the piston ring, one ring and two
rings are literally facing the top of the piston, and the
opening is staggered 180°, and the opening direction is
toward the piston skirt direction; The opening of the two
oil rings must be staggered 120° ~ 180°, and can not be
aligned with the piston pin hole, and the piston rings
should be flexible.
3. The gap between the rings in the oil ring should be
matched with the gap of the isolation ring; When
installing the oil ring, install the separator ring first, and
then install the side guide rail.
Installation of piston
“IN” side of intaking air
The piston installation steps are as follows:
1. Install the piston, piston pin and a new piston pin
retainer;
2. Apply appropriate amount of oil on the surface of the
piston pin;
3. Then the piston inlet direction is arranged into the
small end of the connecting rod upward, and the piston
pin surface is coated with an appropriate amount of oil
and inserted into the piston pin hole and the small end
hole of the connecting rod;
4. Mount another piston pin retainer.
Note:
1. When installing the piston, the air intake (IN)
direction is upward;
2. No deformation after assembly, the retaining ring
completely falls into the groove, and the opening
dislocation is more than 3mm;
3. If the piston pin retainer is seriously deformed, it
must be replaced with a new retainer;
4. Do not let the piston pin ring fall into the crankcase;
5. There is slight clearance in the rear axial direction
when the piston pin is assembled in place.
Installation of cylinder block
The installation steps of cylinder body are as follows:
1. Install cylinder block positioning pin, rectangular
ring, new cylinder block gasket;
2. In the cylinder body, piston and piston ring surface
evenly coated with a layer of oil;
3. The opening between the piston rings is staggered
120° each other, and then gently assemble the cylinder
block in place;
4. Assemble the chain guide roller pin and aluminum
Summary of Contents for TD125
Page 1: ...KAYO MOTO TD125 SERVICE MANUAL www kayomoto com...
Page 24: ...h e c k t h e c a r b u r e t o r i d l e s p e e d R e p l a c e t h e a i r lt e r C h e c...
Page 28: ...i n g s f o r c r a c k s l e a k s a n d i n c o r r e c t w i r i n g C h e c k c l u t c h...
Page 32: ...h a i n s h a n d l e s e t c a n d c h e c k f o r s m o o t h o p e r a o n C h e c k c h a...
Page 34: ...c h a i n g u i d e a n d c h a i n c o v e r C h e c k s p o k e t e n s i o n C h e c k t...
Page 35: ...h e r i m C h e c k f o r r i m e d g e r u n o u t C h e c k if t h e r i m b e a r i n g i s...
Page 40: ...s y s t e m s e t u p C h e c k t h e c o m p r e s s i o n a n d r e b o u n d o f t h e...
