Yanmar YM155d Service Manual page 53

(1) Inspecting by Testing Equipment
lOOOst (at 1350
rpml of cam shaft
2T73A. 22ccl
l W k t
( a t
1250
(2)
Disassembly, Assembly, Adjusting
(2.1) Fuel Injection Valves
a)
The injection valves are built as shown in
the illustration below.
Valve spring reminer
Adjusting shim
Valve holder body
Valve spring shoe
Fuel injection
valve S'Y