bottom bulb has blown, you dont need to remove anything off the bike, the bulb is on the lower left hand side of the speedo, about where 40mph is, pull the rubber plug out and the bulb will be inside.
you will need a 12V 1.7W bulb, a small one, a few pennies on ebay
its this bulb, but buy a 10 pack, can get them for £5 for 10
http://www.ebay.co.uk/itm/Motorcycle-Sm ... 2322e37576
you might want to spread the contacts on the bulb and on the rubber cap a little so the fit is tighter...then you will be sorted!
5 minute job.
UK ZXR400 L3 (1993) - Fully restored and on the roads, my green beast!
JPN ZXR250 A2 (1990) - Revs to 19,200rpm... 'nuff said
hi, anyone have any idea how easy it is to replace the speedo clock bulbs? only i cant read from 0-60mph in the dark coz it appears one of the bulbs has blown in the clock or are all zxr400 l's a nitemare to read this part of the clock in the dark does anyone know? cheers guys! 
