I cant find my rear breaklight swich on my R1 to even figure out why my lights only work with the front lever

Hi, There should be a spring that pulls the lever back up when you remove your foot. It might be missing or broken. You might also have a mal adjusted switch that activates the brake light. it should be located near the pivot bolt for the brake lever. There is also a switch on the front brake lever. That might need adjusting or replacement.

It doesn't, it houses electric components. The earlier model was removable.

Sounds like the previous owner patched a hot wire to the rear lights instead of fixing the problem.
Someone will need to get the factory wiring diagrams and start backtracking from the lights to the dash to find out what is wrong. You may need a shop manual to get the diagrams you will need. Most repair books do not go into wiring that deep for the DIY.

Does it work fine with rear brake just not with front? If so...inspect the brake switch on the front lever...might be loose so the lever can't press against it.....or remove lever and inspect how the switch is activated (lever presses against it or moves away) and try moving the plunger by hand.
Could also be a loose connection on wiring to the switch.

If neither front or rear work...check fuses, light socket and wiring to the light.
Wiring damage under the seat is common on many models of bikes...the wires get moved then pinched under the seat.

There are two switches. One is on the right handlebar switch housing. It is operated by the front brake lever. When you pull the lever, it pivots on a pin which causes the backside of the lever to move forward. There is a tap on the backside of the lever that presses the front brake light switch turning the brake light off. When you pull the lever, the tab moves forward and releases the switch turning the light on. Now, if the light stays on, you can loosen the bolts that hold the front brake master cylinder onto the handlebars, slide the front brake master cylinder down as close to the right handlebar switch housing as possible. If this doesn't turn the light off, this switch my be bad or the lever has too much wear in it and should be replaced.

There is another switch in the system for the rear brake. Follow the metal brake line coming out of the rear of the rear brake master cylinder and you'll come to a "Tee fitting" with a pressure switch in it. This is the rear brake light switch. Usually when it goes bad, the brake lights will not come on, not light up all time. But, then I'm pretty sure that I haven't seen everytig. Test the switch for contineuity using an obm meter.

Good Luck
Steve

Have had this problem many time's here at my shop, if center brake light come's on which you said it does, fuse and relay are good, the problem is your turn signal switch cause the brake light circuit goes through the switch, the switch is bad even though the turn signal's still work's, good luck, hope this was evrey helpful.

yOU WILL HAVE TO PLACE THE sWITCH IN THE STEARING COLUME IT COST ABOUT 90 DOLLARS.

The neutral swich is located behind the front sprocket cover
Ride Safe
Bike-Doc

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you wont get one, you just have to figure it out as you go. start by stripping all your bodywork off and removing the engine, then the front forks rear wheel and wiring harness. then replace it all on your new frame. keep your work area clean and tidy, mark all electrical connections you have to undo with tape and write on it where they re-connect to.
good luck