GOVERNOR
The 2 cylinder engines a r e equipped with c e n t r i f u g a l flyweight type mechanical governors which
a r e e x t e r n a l l y mounted a t t h e r e a r of the gear cover and driven off the camshaft gear.
The governors
a r e s e l f - c o n t a i n e d u n i t s except models
t o S e r i a l No. 9224060 which were l u b r i c a t e d through an
e x t e r n a l o i l l i n e which connects the engine l u b r i c a t i o n system t o t h e governor.
G o v e r n o r s a r e a d j u s t e d in the f a c t o r y a n d f u r t h e r a d j u s t m e n t should not b e needed u n l e s s linkage
b e c o m e s l o o s e o r d i s c o n n e c t e d . Always m a k e s u r e linkage b e t w e e n g o v e r n o r and c a r b u r e t o r m o v e s
f r e e l y .
If
g o v e r n o r
is
o u t of a d j u s t m e n t , engine s p e e d will s u r g e o r hunt with changing load o r s p e e d
w i l l d r o p c o n s i d e r a b l y when a n o r m a l load
is
a p p l i e d . G o v e r n o r s a l s o function t o e s t a b l i s h s a f e o p e r a t -
ing s p e e d l i m i t s - - t h e s e m u s t not b e e x c e e d e d .
Although m e c h a n i c a l t y p e g o v e r n o r s a r e u s e d on a l l two c y l i n d e r m o d e l s , t h e
g o v e r n o r s a r e
d i f f e r e n t i n d e s i g n a n d t h e r e f o r e t h e
p r o c e d u r e v a r i e s s l i g h t l y . G o v e r n o r s a r e s e t a t e i t h e r
a c o n s t a n t s p e e d s e t t i n g o r a t a v a r i a b l e s p e e d s e t t i n g a s d e t e r m i n e d b y t h e engine a p p l i c a t i o n . Make
s u r e t h e p r o p e r p r o c e d u r e i s followed f o r t h e p a r t i c u l a r engine involved.
K 5 3 2
GOVERNORS
On t h e
a n d
t h e b r e a k e r p o i n t s a r e m o u n t e d o n t h e g o v e r n o r a n d a r e a c t i v a t e d b y t h e
b r e a k e r r o d which r i d e s o n a
o n the g o v e r n o r d r i v e shaft.
F o r t h i s r e a s o n , i t i s n e c e s s a r y t o t i m e
t h i s g o v e r n o r t o t h e engine.
T h i s i s i n i t i a l l y done d u r i n g a s s e m b l y of t h e engine a n d i t w i l l not h a v e t o
b e done a g a i n u n l e s s g o v e r n o r h a s b e e n
t h e engine.
I n s t a l l a t i o n a n d T i m i n g :
U s e
the following p r o c e d u r e t o i n s t a l l a n d
the g o v e r n o r t o the engine:
1.
Uncover i g n i t i o n t i m i n g s i g h t hole on blower housing and a l s o r e m o v e s i g h t hole plug
l o c a t e d a t t o p of g e a r c o v e r .
2 .
T u r n e n g i n e o v e r until Top Dead C e n t e r ( D C ) m a r k o n flywheel i s c e n t e r e d i n ignition
s i g h t hole.
3 .
One of t h e t e e t h o n the g o v e r n o r g e a r h a s a s p e c i a l
b e v e l o r d e e p c h a m f e r - - t u r n
g e a r s o t h a t t h i s tooth i s i n the a p p r o x i m a t e 12 o ' c l o c k p o s i t i o n o r w h e r e i t c a n be o b s e r v e d
i n the g e a r c o v e r s i g h t hole a f t e r g o v e r n o r i s i n s t a l l e d ( S e e F i g u r e 5 - 1 ) .
T I M I N G S I G H T
FIGURE
5-1
--
T I M I N G
K532 GOVERNOR TO ENGINE
5.1
