Question about Yamaha YZF-R1 Motorcycles

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

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  • Bonez397 Dec 12, 2012

    thanks! found out the previous owner put vortex rear sets on in n didnt buy the pressure switsh that goes inline, I did lol thanks again


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Its usually connected with a spring to u'r brake pedal or built into the master and works of the pressure of you pressing the pedal. look at number 10.

Posted on Dec 12, 2012

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1 Answer

Everything except the brake lights work on my 2001 R1 Yamaha

Hi, Candace good for you any type of wiring harness installation is no small quickie and fixing the brake light is easy before diagnosing any brake light issue always check the bulb and fuse first for integrity a brake light staying on is usually caused by the front brake light switch, which is mechanical, not disengaging. On early models moving the throttle control housing closer to the front brake master cylinder is the main fix. On late models, the switch gets tweaked and needs to be realigned. A brake light that does not come on when the brake lever is applied can be caused by a faulty switch or no continuity in the wiring at the switch. The rear brake light switch is hydraulic and it is extremely rare to malfunction in a closed circuit condition causing the brake light to stay on. Usually, rear brake light switch issues are caused by no brake pedal free play or a sticky rear master cylinder piston. A brake light that does not come on when the rear brake pedal is depressed can be caused by a faulty switch, air contamination in the brake line, or no continuity in the wiring at the switch. For more information about your issue and valuable "FREE" downloads that you will need please click on the links below and for more specific information or questions at no charge please feel free to contact me at Good luck and have a nice day.
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Aug 26, 2016 | 2001 Yamaha YZF-R1

1 Answer

Rear brake lever sticking making my brek lights stay on

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.

May 21, 2014 | 2001 Yamaha YZF-R1

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How do you remove the rear seat on a 2002-03 Yamaha R1?

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

Apr 27, 2014 | 2003 Yamaha YZF-R1

1 Answer

All rear lights dont work the way they should

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.

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I have a yamaha r1 2007 and the brake light doesn't light up when you pull the brake lever. What could the problems be?

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.

Apr 05, 2011 | Yamaha YZF-R1 Motorcycles

1 Answer

Break tail light stays on all the time? where is the swich

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

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In my rear tailights, the breaklight component is not functioning. i replaced them with brand new lights. the center breaklight located in the back window is still working. Cant figure out why they wont...

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.

May 17, 2010 | 1997 Ford Contour

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Intermittent problem with neutral light on a 2002 R1

The neutral swich is located behind the front sprocket cover
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How do i get to the right parking light to change the bulb?

there is a little black lever at the back of the headlamp lift it up and tease the light unit out,they can be tight so be aware,oil the slides well when you get the light out,this will help when you put it back in.........good luck.......they can be very painfull

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