Yamaha MA50 - Page 56

1 Reed valve assembly
2 Rood valve
3
Aced valve stopper
4. Punhead screw
5
Sprong wa sher
6
Reed valve plate
7
Valve seat pac k ing 1
8
Valve sea t packing 2
9
Manifold
10
Panhead scre w
4. Valve stopper
~10
~
~8
r--------,
I ~ 4 I
I u--5 I
: ~~6 :
1 ~·0@~ 0 :
I
0
I
I • 2 I
I I
I ~31
I • I
I I
,_ ---- - _ _J
7 -0
4. But ee d es clapets
I. E n:-.. du1'>4.:t:\ Oi::itihlc~
2. Lame ~ O..:xihle-:
J. Buice' <J.:., lan1e> Ocxihlc s
4 . V1:i. ii l~I~ tron\!oniqu..:
5. Ro111klk Gro"w
f,, Plaqu..: J¢._, lumc:i. ncxiblc:>
7. Joinl I de ,;.;l(c des dape1s
II. )1•111 2 de ,;q,.c U.-s calpcts
'I Tuhulurc
10. V" a lclc lrtMh.:onique
The valve stopper controls the move-
ment of the va lve. Check clearance "a" .
La butee des clapets controle le mou ve-
m en t des lames. Controler le jeu "a".
Valve stopper clearance:
4.8±0.2 mm (0.19±0.00 8 in)
Read distortion
lim it: 0.3 mm (0.01 2 in)
NOTE : -~~~~~~~ ~~~~
lf clearance "a" i§ la r ger than specified. the
valve will be broken. If smaller. engine per-
formance can be impaired.
4 -4
J cu de butee des cla pet s: 4.8 ± 0.2 mm
Limite
de distorsion de lame: 0.3 mm
N.8.: ------ - ----- - --
Si le jc u "a" est su per ieur a la valeur s pecifiee,
l es cl ape ts se cassero nt. s·il es t inferieur. le re -
ndement du moteur peut et re alTecte.