Got a problem....no lights but do have brake light. Tried changing fuse,but each time it blows. Any help appreciated. Thanks.

You have a short somewhere my friend. Anything yo udone recently? Most likely under the seat toward the rear light, under the tank or in the headlight cowl.
Get the wiring diagram for the lights and start following.
Another trick is to wire a old fasion bulb (no halogen) over the busted fuse when you switch things on the bulb comes on till you find the fault and they all come on dimmed.
Replace the fuse after that.
No two ways about it, put your short finding cap on and get cracking.