Hi All, Long time contributor and lurker been out of action for awhile but now back with Spring in the southern hemisphere approaching. Started up the might XJ900F beast and all is well (it had a rebuild from the ground up 18 months ago). Before shutting it down for a couple of months over winter everything worked fine, including the tachometer. However, on startup about a week ago the tach budged and is moving but won't get over around 500rpm. Blip the throttle and it just wiggles at around 500rpm. Seen posts on here about a grey wire but mine doesn't have a grey coming from the tach. I'm presuming it's a brown wire but can be corrected. I think it's just a loose connection but have checked the connector and all seems solid with all 4 wires (ground and instrument lights included). Could the fault be in the loom back to the TCI? There seems to be something happening because the needle moves but won't go beyond an initial point. Haven't tried the multimeter yet for continuity but will do so. All other electrical functions working fine...sidelight, headlight, indicators, horn. Any suggestions...? Thanks!