Hi, As background I have an 04 VFR800. A few days ago I replaced the battery, which was just about dead, with a Yuasa. Now today I go and check my lights before I ride. The tail light works but the brake lights won't come on using either the front or rear brake. I have checked the fuses and they are all ok. The indicators work, horn etc....no other electrical problems or gremlins. I have checked and even replaced the bulbs but the same thing happens so it is not the bulbs. I have had a look at the wiring and can't see anything that 'stands out' as a problem, i.e. broken wires etc. I am assuming it has something to do with changing the battery over? The fact that neither foot or front brake will operate the lights means that it's a problem near the rear lights? I'm not much of an electrician unfortunately. Anyone had a similar problem and have some solution. Would be greatly appreciated as I'm now without transport until I fix it or I'll have to take it into the shop.... Cheers in advance.