Re: rude vibrates @low rpm,s
A vibration during initial acceleration may be a cylinder dropping out, or not firing properly during high demand.<br /><br />Go through the basics like a compression test. Plug check for color and spark. Do a cylinder balance test by disabling each cylinder one at a time and loking for similar results.<br /><br />Make sure link and snyc, and ignition timing is set correctly as stated in you particular manual.<br /><br />Maybe a fresh set of plugs will mask another maladay at least temporarily.