Nissan Other

: ( I have just picked my a Nissan 100nx 1.6
The problem I am having at the moment is that when I am driving along and change down to go round a corner and then I go to put my foot down the car starts to judder, as though I am not getting any fuel or too much air in the carb.
And when I am at a set of lights and in nutral (idle) the rev-counterpointer moves from under 1000 (500 + 800) and then goes upto 1500 and then back down again.
I have changed the plugs and leads, but yet to change the dizi and rotor arm inwhich I will be doing this on friday. Can you help?
April 26, 2006.

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