Suzuki LT-4WD 1990 Service Manual page 261

8- 5
S E R V I C I N G I N F O R M AT I O N
C om p l a i nt
Sp ark p l u g e l ectrodes
o v e r h e a t o r bu r n .
M a g neto does not
c h a r g e .
M a g neto c h a r g es,
b u t char g i n g
rate i s be l ow t h e
s p ec i f i cat i o n .
M a g neto
overch a r g es.
U nsta b l e c h a r g i n g .
Starter bu tto n is not
effect i v e .
B attery "su lfati o n "
( " S u l f a t i o n " , ac i d i c
w h i te p owdery
su bsta nce o r spots
o n su rfaces of c e l l
p lates. )
Sym ptom a n d poss i b l e causes
1 .
S p a r k p l u g t o o h o t .
2 . T h e e n g i n e o v e r h ea t s .
3 . S pa r k p l u g l o ose .
4 .
M i x t u r e too l ea n .
1 .
O p e n o r s h o rt i n l e a d w i res, o r l oose l ea d co n n ect i o n s .
2 . S h o rted , g ro u n d ed o r o p e n m ag n eto co i l s .
3 . S h o rted o r p u n ctu red reg u l ator/rect i f i e r .
1 .
Lead w i res t e n d to get s h o rted o r o p e n -c i rc u ited o r
l oose l y co n n ected at t e r m i n a i s .
2 . G ro u n d ed o r o p e n - c i rcu i ted stator co i l s o f m a g n eto .
3 . D efect i v e r eg u l ator/rect i f i e r .
4.
N ot e n o u g h e l ectro l yt e i n t h e battery .
5.
D efect i v e c e l l p l ates i n t h e batte ry .
1 .
I nte r n a l s h o rt-c i rcu i t i n t h e battery .
2 . R es i st o r e l em e n t i n t h e regu l ato r/rect i f i e r d a m ag e d o r
d ef e ct i v e .
3 . R eg u l ator/rect i f i er poo r l y g ro u n d e d .
1 .
Lead w i re i n s u l at i o n f r a y ed d u e to v i brat i o n , resu l t i n g
i n i n te r m i tt e n t s h o rt i n g .
2 . M a g neto i n te r n a l l y sh orte d .
3 . D ef e ct i v e r eg u l a t o r /rect i f i e r .
1 .
B attery ru n d ow n .
2. D efect i v e sw itch co ntacts .
3 . B ru s h e s n o t seat i ng p r o p e r l y o n co m m u tator i n starter
m o t o r .
4.
D efect i v e sta rte r re l a y .
5 .
W i r i ng co n n e ct i o n s l oose or d i sco n n ecte d .
1 .
C h a rg i n g rate too l ow o r too h i gh .
( W h e n not i n u s e batt e r i e s s h o u l d be recharged at l e a st
o nc e a m o nth to av o i d su l fa t i o n . )
2 . B attery e l e ct r o l yte exces s i v e o r i n su f f i c i e n t , o r i t s
s p e c i f i c g r a v i t y t o o h i g h o r too l o w .
3 . T h e battery l eft u n u se d i n a ru n - d o w n co n d i t i o n f o r
too l o n g i n co l d c l i m a t e .
4.
C o n ta m i nated e l ectro l yte .
( F o re i g n m atter h a s e n te r e d , m ixed w it h t h e e l ectro l yte,
and co n ta m i n ated i t . )
R em ed y
R e p l a c e by co l d type p l ug .
T u n e u p .
R et i g h t e n .
Adjust c a r b u reto r .
R epa i r , r e p l ace o r ret i g h te n .
R e p l a c e .
R e p l a c e .
R e pa i r o r r e t i g h te n .
R e p l a c e .
R e pl ace .
Add d i st i l l e d water to t h e
u p per l ev e l .
R e p l a ce t h e battery .
R e p l a c e t h e batte ry .
R e p l a c e .
C l ean a n d t i gh t e n grou n d
co n n e ct i o n .
R e p l a ce .
R e p l a c e .
R e p l a c e .
R ec h a r g e o r r e p l a ce .
R e pl a c e .
R e pa i r or re p l a ce .
R e p l a c e .
C o n n ect, t i g h t e n or repa i r .
R e p l ace t h e batte ry .
Keep t h e e l e ct r o l yte u p t o
t h e pres c r i b e d l ev e l , o r
adj ust t h e S . G . by co nsu l t i ng
t h e batte ry m a k e r's d i rect i o n s .
R e p l ace t h e ba tte ry, i f
bad ly su I fated .
I f "su l f a t io n " h a s not
a d v a n ce d too far, try to re sto re
th e batte ry by re p l a c i n g t h e
e l e ctr o l yte, r e c h a rg i ng i t
fu l l y w i t h t h e batte ry d eta-
ch ed f r o m the veh i c l e a nd t h e n
adj ust i n g e l e ct r o l yte's S . G .