Yamaha RD250 Owner's Manual page 98

a. L u b r i c a t i o n — t h e r e a r e s e v e r a l e x c e l l e n t
p r e s s u r e c a n l u b r i c a n t s a v a i l a b l e . U s e a rag to
w i p e off a n y a c c u m u l a t i o n of dirt, t h e n s p r a y a
liberal a m o u n t of l u b r i c a n t o n t h e c h a i n at least
e v e r y 3 , 0 0 0 k m .
b. C l e a n i n g — t h e c h a i n h a s to be p e r i o d i c a l l y
r e m o v e d f r o m t h e m a c h i n e a n d s o a k e d in c l e a -
n i n g s o l v e n t . C o m p l e t e l y s a t u r a t e the c h a i n w i t h
s o l v e n t to r e m o v e as m u c h dirt as p o s s i b l e . D r a i n
a n d dry t h e c h a i n t h o r o u g h l y . I m m e d i a t e l y after
t h e c h a i n h a s d r i e d c o m p l e t e l y , l u b r i c a t e to
p r e v e n t a n y rust f r o m f o r m i n g .
c. A d j u s t m e n t — p r o p e r d r i v e c h a i n up a n d d o w n
free play, w i t h t h e rider in p o s i t i o n , s h o u l d e q u a l
2 0 m m . w h e n m e a s u r e d at the c e n t e r of t h e
l o w e r s e c t i o n of c h a i n .
F o l l o w t h e s e S t e p s to o b t a i n t h e c o r r e c t free p l a y :
92