04-07-16, 08:36 PM
Had a similar problem with mine. Only had the bike a couple of weeks and while riding the speedo dropped to zero and the Rev counter worked intermittently. Turned out the plank who had it before me had put front pads in. When he removed the calliper he routed the speedo cable incorrectly and it was rubbing on the disc. It had snagged and ripped the wires out the drive. So this sounds extremely similar. Just look for any damage on the wire. It runs up underneath the tank into a loom. I replaced the full drive and cable and it fixed it. Although I payed £70. Hope this helps