Husqvarna SM 610 2006 Workshop Manual page 21

T R O U B L E S H O O T IN G
T ro u b le
E n g in e cu ts o u t e as ily
E n g in e n o is y
P is to n n o ise
C ra n ks h a ft n o is e
C lu tc h n o ise
G ea rb o x n o is e
R e ar tra n s m iss io n c h ain n o ise
C lu tc h slip
3
C au se
1. S p ark plu g d irty
2. E lectronic co n tro l u n it fa u lty
3. C arb u re to r je ts b lo cke d
4. Idling lo w
1. E xcessive p lay b e tw e e n c ylin d e r line r an d pisto n
2. P isto n ring s o r p isto n rin g s sea ts w o rn
3. E xcessive ca rb o n la ye rs in side th e com b u stion ch am -
ber or o n the p isto n to p
4. W orn ro cke r a rm
5. E xcessive va lve p la y
6. V a lve sprin g s w e a k o r se ize d
7. C am chain w o rn
1. M ain b earing s w o rn
2. H ig h radial a n d a xia l p la y a t co n-rod b ig e nd
3. C ran kshaft g e a r d a m a g e d
4. C ran kshaft n u t lo o se
1. D iscs w o rn
2. E xcessive fre e p la y b e tw e e n clu tch d rum a nd driving
discs
1. G ea rs w orn
2. G ea r spline s w o rn
1. C hain stre tch e d o r b a d ly a d ju ste d
2. E n gin e spro cke t a n d re a r w h e e l spro cket w orn
1. Insufficien t clutch a d ju ste r fre e pla y
2. C lu tch sprin g s w e a k
3. C lu tch discs w o rn
R e m e d y
C le an
R e pla ce
C le an
A d just
R e place
R e pla ce
C le an
R e pla ce
A d just
R e pla ce
R e pla ce
R e pla ce
R e pla ce
R e pla ce
T ig hte n
R e pla ce
R e pla ce
R e pla ce
R e pla ce
R e pla ce o r a dju s t
R ep la ce
A d just
R e pla ce
R e pla ce