Suzuki LT-4WD 1990 Service Manual page 259

S E R V I C I N G I N F O R M AT I O N
8-3
Com p l a i n t
E ng i ne i d l es p oo r l y .
E ng i ne ru ns poo r l y i n
h ig h speed range.
D i rty or h eavy
e x h aust s m oke.
E ng i ne lacks power.
E ng i ne ov e r h eats.
SHAFT DRIVE
Com p l a i nt
N o p owe r transm it-
ted from e n g i n e to
rear whee l .
N o power trans m i t-
ted from e n g i n e to
front w h e e l .
1 0 . Wo r n o r d a m aged fro n t a x l e/ C V j o i n t s e r r a t i o n .
Sym p fo m a n d poss i b l e causes
7 . S p a r k p l u g g a p t o o w i d e .
8 . D ef e ct i v e i g n i t i o n co i l r e s u l t i n g i n w e a k s p a r k i n g .
9 . F l o a t· c h a m b e r f u e l l ev e l o u t o f a d j u st m e n t i n ca r b u r et o r .
1 0 . C l ogged j et s .
1 1 . D efect i v e f u e l p u m p .
1 2 . I m p r o p e r l y set p i l o t s c r ew .
1 . V a l v e s p r i n g s w e a k e n e d .
2 . V a l v e t i m i n g o u t o f adj u s t m e n t .
3 . Wo r n c a m s o r r o ck e r a r m s .
4 . S p a r k p l u g g a p t o o n a r row .
5 . D ef e ct i ve i g n it i o n co i l .
6. F ! o a t- c h a m b e r f u e l l ev e l too l ow .
7 . C l o g g e d a i r c l e a n e r e l e m e n t .
8 . C l og g e d f u e l p i pe, r e s u l t i n � i n i n a d e q u ate f u e l s u p p l y t o
ca r b u reto r.
9 . D ef e ct i v e f u e l p u m p .
1 . T o o m u ch e n g i n e o i l i n t h e e n g i n e .
2 . W o r n p i sto n r i n g s o r cy l i n d e r .
3 . W o r n v a l v e g u i d e s .
4 . Cy l i nd e r w a l l s c o r e d o r scu ffed .
5 . Wo r n v a l v e ste m s .
6. D efect i v e stem sea l s .
1 . Loss of v a l v e c l e a r a n ce .
2 . W e a k e n ed v a l v e s p r i n g s .
3 . V a l v e t i m i n g o u t o f a d j u st m e n t .
4 . Wo r n p i sto n r i n g o r cy l i n d e r .
5 . P o o r s e at i ng o f v a l v e s .
6. F o u l ed s p a r k p l u g .
7 . W o r n r o c k e r a r m s o r s h afts.
8 . S p a r k p l u g g a p i n c o r r ect.
9 . C l o g g e d j ets i n c a r b u reto r .
1 0 . F I o a t - c h a m be r f u e l l e v e l o u t of adj u s t m e n t .
1 1 . C l o g g e d a i r c l e a n e r e l e m e n t .
1 2 . Too m u ch e n g i n e o i l .
1 3 . S u c k i n g a i r a r o u n d i n t a k e p i pe .
1 . H e a vy ca r b o n d e po s i t o n p i sto n crow n .
2 . N o t e n o u g h o i l i n t h e e n g i n e .
3 . D e f e ct i v e o i l p u m p o r c l ogged o i l c i rc u i t .
4 . F u e l l ev e l t o o l ow i n f l oa t c h a m be r .
5 . A i r l ea k f r o m i nt a k e p i pe .
6. U s e o f i n c o r rect e n g i n e o i l .
Symptom and poss i b l e cau ses
1 . Wo r n o r b r o k e n r e a r a x l e s h aft s e r r a t i o n .
1 . B r o k e n seco n d a ry d r i v e a n d d r i v e n g e a r teet h .
2 . W o r n o r b r o k e n p r o pe l l e r s h aft s e r r at i o n .
I
3 . D a m a g e d c o u p l i n g .
4 . Wo r n o r d a m aged co u p
5 . B r o k e n o r d a m aged f r o n t d r i ve a n d d r i v e n b e v e l g e a r s .
6. B r o k e n o r d a m a ged f r o n t d i ffe r e n t i a l gea rs/ p i n i o n s .
7 . I m p r o pe r l y adj u sted d i f f e re n t i a l co n t r o l c a b l e .
8 . Wo r n o r d a m aged s l i d i n g d o g / s h a ft/fo r k o f t h e
d i ffe r e n t i a l g e a r s .
9 . Wo r n o r d a m aged CV j o i nt .
i n g j o i nt se r r a t i o n .
R e m edy
Adj ust o r r e p l a c e .
R e p l a c e .
Adj u st .
C l e a n .
R e p l a c e .
Adj u st .
R e p l a c e .
Adj u st .
R e p l a c e .
Adj u s t .
R e p l a c e .
Adj u st .
C l e a n .
C l e a n a n d p r i m e.
R e p l a c e .
C h e c k w i th i n s p e ct i o n
w i n d o w , d r a i n o u t excess o i l .
R e p l a c e .
R e p l a c e .
R e p l a ce .
R e p l a c e .
R e p l a c e .
Adj ust.
R e p l a c e .
Adj u st .
R e p l a c e .
R e pa i r.
C l e a n o r r e p l a c e .
R e p l a c e .
Adj ust o r r e p l a c e .
C l ea n .
Adj u s t .
C l ea n .
D ra i n o u t e x cess o i l .
R et i g hte n o r r e p l ace.
C l e a n .
A d d o i l .
R e p l ace o r c l e a n .
Adj u st .
R et i g h t e n o r r e p l ace.
C h a n g e .
R e m edy
R e p l a ce .
R e p l a c e .
R e p l a c e .
R e p l a c e .
R e p l a c e .
R e p l a ce .
R e p l a c e .
Adj u s t .
R e p l ace.
R e p l a c e .
R e p l a c e .