Bearing - Yamaha VMX12H Supplementary Service Manual

I NSPECTI O N AND REPAI R
Exam pl e 1: Sel ect i on of t he crankshaf t m ai n
beari ngs;
t he cr ankcase J 1 and cr ankshaf t J 1 si zes
ar e No. 4 and No. 1, r espect i vel y, t he bear i ng
si ze N o. i s:
B eari ng Si ze N o. =
C rankcase N o.- C rankshaf t N o. =
4 - 1 = 3 ( B row n)
BEAR I N G C O LO R C O D E
N o. 1
N o. 2
N o. 3
N o. 4
N o. 5
N o. 6
Exam pl e 2: Sel ect i on of t he connect i ng rod

bearing;

t he connect i ng r od P1 and cr ankshaf t P1
si zes ar e N o. 4 and N o. 1, r espect i vel y, t he
bear i ng si ze No. i s:
B eari ng Si ze N o. =
C onnect i ng rod N o. - C rankshaf t N o. =
4 - 1 = 3 ( B row n)
BEAR I N G C O LO R C O D E
N o. 6
N o. 7
BALANCER SHAFT
Bal ancer Shaf t B eari ng C l earance M easurem ent
1. Cl ean sur f aces of bal ancer shaf t and cr ankcase
j our nal .
2. P osi ti on:
• Cr ankcase hal f ( upper )
Pl ace on a bench i n an upsi de dow n posi -
t i on.
I B l ue
I Bl ack
Br own
G reen
Yel l ow
Pi nk
Pi nk
R ed