Yamaha VMX12H Supplementary Service Manual page 166

I NSPECTI O N AND REPAI R
B alancer S haft B earing S election
• Num ber s used t o i ndi cat e bal ancer shaf t j our nal
si zes ar e st am ped on t he R H bal ancer w eb
cor ner , st ar t i ng w i t h t he l ef t j our nal .
Lef t bal ancer shaf t j ournal si ze num ber
Ri ght bal ancer shaf t j ournal si ze num ber
l ow er cr ankcase hal f i s num ber ed J5, and
J6 as shown.
Exam pl e: Sel ect i on of t he bal ancer shaf t bear-
ngs;
I f t he cr ankcase J5 and l ef t bal ancer shaf t
si zes ar e N o. 4 and N o. 1, r espect i vel y, t he
l ef t bal ancer bear i ng si ze No. i s:
Beari ng Si ze No. =
C rankcase N o. - B alancer S haft N o. =
4
- 1 + 3 ( B r ow n)
BEAR I N G C O LO R C O D E
TR A N SM I SSI O N
Shi f t For k
1. Inspect:
• Shi f t f or ks
O n t he gear and shi f t cam cont act sur -
f aces.
W ear/C hafi ng/B ends/D am age
2. C heck:
• Shi f t f or k m ovem ent
O n i t s gui de bar .
U nsm oot h operat i on
gui de bar .
R epl ace.
R epl ace fork and/or
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