Yamaha VMX12H Supplementary Service Manual page 155

3- 31
I NSPECTI O N AND REPAI R
2. P osi ti on:
Pi st on r i ng
I nt o cyl i nder .
Push t he r i ng w i t h t he pi st on cr ow n,
3. M easure:
End gap
U se the Feel er G auge
O ut of speci f i cat i on
set.
0. 35 ~ 0. 50 m m
2nd Ri ng
( 0. 0138 ~
0. 0197 i n)
0 . 2 ~0 . 8 m m
O i l Ri ng
( O. OO8O. ~
0. 032 i n)
Over si z e Pi st on Ri ngs
• The over si ze t op and m i ddl e r i ng si zes ar e
st am ped on t op of t he ri ng.
Over si ze 1
Over si ze 2
* The expander spacer of t he bot t om r i ng ( oi l
cont r ol r i ng) i s col or - coded t o i dent i f y si zes.
The col or m ar k i s pai nt ed on t he expander
spacer .
Pi st on Pi n
1. Lubri cate:
* Pi st on pi n ( l i ght l y)
2. I nst al l :
• Pi st on pi n
Into sm al l end of connecti ng rod.
.
Repl ace r i ngs as
0. 75 m m
( 0. 0295 i n)
0. 25 m m ( 0. 0098 i n)
mm
0. 50 ( 0. 0197 i n)