Kawasaki Z 900 discussion forum:

RE: 1975 Kawasaki 900 Z1b

RE: 1975 Kawasaki 900 Z1b

bojo said 2011-06-08 14:21

I have a 1975 z900 b . The problem is , not enough suction [ vacuum ] on nr 2 cylinder . I have changed carbys , presure tested [140 on all fours ] checked electricals thouroughly , valve gap perfect , un opstructed intake and exhaust .recently all new valves and rings . Anybody any ideas ? .Nr 2 header pipe does not heat up at idle but power kicks in at about 4000 revs . very frustrated . bojo

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