D1 running rough

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Originally Posted by discojim

Hi all,
I know this has been brought up before (and i have read all the posts) but my D1 is not running real well. Firstly i have replaced the plugs, leads, cap and the button but it still runs rough. At idle it feels like it is missing, once you get over about 2000rpm it is not as bad but you can still feel it. I usualy run the D1 on premium but i ran 1 tank of normal and the problem has only just started.

Help

Doug

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sounds like rocker cover gaskets blown/worn etc or loose bolts causing low pressures causing it to run rough/idle rough below 2000 rpm then getting enough suction to hold the rocker cover down once more revs are inforced