Yanmar YM276 Service Manual page 190

30.10-30 Fuel System
2. (FOR LIMITER WlTH WHITE PAINTMARK)
n
lnsert spacer (A) which has the thickness of 1.4 to 2.0 mm
(0.055 to 0.078 in.) nut (C), and screw into the timing gear
cover.
(FOR LIMITER WITHOUT MARK)
lnsert spacer (A) which has the thickness of 0.8 to 1.0 mm
(0.032 to 0.039 in.) between limiter screw (B) and lock nut
(C),
and screw into the timing gear cover.
A
-
Spaear
B -Limit Screw
C
-
Lo&
Nut
3. lnsert screw drive (A) between governor lever (6) and Control
lever IC) to keep away from each other.
Then, rurn the limiter screw (D) clockwise t o push the governor
and regulator levers an fuel control rack (E) until the punch
mark
(F)
on control rack (E) is centered on reference face ( G )
of pump housing.
A
-
Screw Drive E -Control Radt
B
-
Governor Laver F -Pun& Mark
C
-
Ra~ulamr Lever
G
-
Reference Surface
D
-
Limb
Screw
H
-Spacer
4. (FOR LIMITER WlTH WHITE PAINTMARK)
Remove the screw drive (A) and the spacer (El, and screw
limiter 220' to 230' (518 turn) out of timing gear cover.
(FOR LIMITER WITHOUT MARK)
Remove the screw drive (A) and the spacer (6) and screw
limiter 375O to 400° (1.118 turns) out of timing gear cover.
5. Secure adiustment with lock nut (B) and inrtall cap nut.
Be sure for limiter (A) not to be turned when tightening lock
nut
(=I.
6.
Install cover plate t o the timing gear cover.
7. Check engine fast idle speed after adjustment.
The fast idle speed should be 2725 to 2775 rpm.
A
-
Fuel LimitM
B
-
LO& Nut