red warning light and fuel consumption

[grant71]

last week i renewed fuel lines on my K100 RS. Well i dont know what happened but my fuel con has gone haywire. this am i put in10.58 litres for 87 kms. thats 12 litres per 100 kms.ridiculous!. plus i am now getting a red warning light. the reservoirs are full of brake fluid. before this happened the warning light would go on as i started and then when i touched the brake pedal or lever the red light went off. now its on permanently. any ideas please.

[2000rsv]

You may have something completely unrelated going on.  Specifically, your brakes are engaging.  Check the rotors/pads. 

Does it still move in neutral or clutch in?  Or is there brake drag?  This would account for both the brake idiot light and the drop in fuel efficiency.

[frankenduck]

The BMU is a relay of sorts.  It does three things:

1) Tests the brake switches. When you start the bike up, it illuminates the red "triangle light" in the center of the instrument cluster.  Once you've hit both brakes, it should go out.  If it doesn't then one of your brake switches is probably bad.

2) Tests the tail light.

3) Tests the brake light.

It's a safety device so you're not running around with a bad brake switch or lights that are out.

Note that the "triangle light" may flicker or go solid while you're riding.  Sometimes this is caused by a tail or brake light bulb getting old even though it lights up as it should.  Try cleaning the contacts in the socket or replacing the bulb.

[2000rsv]

Duck,  Thanks for the clarification on the function of the brake idiot light.  I will pick up on these things in time as I continue to dig into my machine (and pick up more - another K100 on the horizon - perhaps with the FYK engine).

[frankenduck]

If you just got a K75, K75C, K75T, K75S, K75RT, K100, K100RS, K100RT or K100LT and want to know the basics of how everything works then click here.

[2000rsv]

Have read that cover to cover.  The sharing of your expertise is what has provided me confidence to get more of these wonderful machines.  We shall see.

[frankenduck]

Have read that cover to cover.  The sharing of your expertise is what has provided me confidence to get more of these wonderful machines.  We shall see.

Q: How many K bikes is enough.

A: One more. :yes

[grant71]

thank you for that info. i checked the tail light and saw that the small globe that illuminates the no. plate had fused.. repaired that stat took the bike for a run and after 15 mins the engine died.its done that before where it died and i opened the petrol cap , fiddled with the conn on right side where wire comes under the tank. iassume its the petrol pump wire. bike then started and did thatagain afew weeks later. this time engine refuses to fire. so i ve chained bike in a secure building site in Capetown city where a security guard named Elliot ( same as my brother ) is keeping an eye on it until Monday morning. Is it in anybody s experience definitely petrol pump?