Front brake light switch?

[ant_mb]

Anyone ever had one go bad? I was doing my pre ride check today and noticed the front brake was't triggering the brake light. I wound up pulling the switch and taking it apart. The contacts were dirty from arcing together and not making a solid contact. I filed them clean and it works as it should now. I haven't read about anyone having this problem so I thought I'd post up.

 

[OZXJR]

I have had one go bad on another bike,but not on either FZ I have owned.
Do you ride in the rain a lot ?

 

[ant_mb]

The bike has say outside for 4 years so I guess that could contribute to it. It was definitely from arcing. Maybe it got wet and that contributed to it?

 

[OZXJR]

I reckon it was water,my starter button the my previous FZ did the same from riding in the rain,good old WD40 fixed that,lol

 

[ant_mb]

I reckon it was water,my starter button the my previous FZ did the same from riding in the rain,good old WD40 fixed that,lol

Yea I lubed it up good. I wish I would taken pics of the inners.

 

[bricksrheavy]

Just venting;

Arrrgh! - looks like my front brake light switch has failed, AGAIN. This is the second one in 17000 km ~ 10000 miles and to make things worse it looks like I broke my one of my Cardinal rules to "Never, ever throw anything away" and threw the old one out even though I had dissasembled it and (at least so I think) repaired.

I ride rain or shine so I guess the weather did it's thing but damn it these things should at least be more durable. It's cold&windy and my bike is parked in a drafty public garage so I'll report back once I've taken a closer look.

Anyway, thanks for reading and if anyone had a similar problem please let me know :thumbup:

 

[FB400]

I had my switch go bad after about 35k miles of use. The Yamaha switch is a little pricey for what it is.

Used this one instead - the fit is good and it works well. not sure if you can get it shipped from Amazon to where you live but it might give you an option to look at

https://www.amazon.com/gp/product/B00230MIZK/ref=oh_aui_detailpage_o06_s00?ie=UTF8&psc=1

Tom

 

[TownsendsFJR1300]

I've never had the issue but you may try putting a dab of di-electric grease (stuff it) at the opening where the "plunger" goes in and out.

Basically to keep water out....


There were several posts about the side stand switch acting up. Being pro-active, (no issues), I pulled it apart and greased it with di-electric grease.


.

 

[bricksrheavy]

Update;
After some fiddling with it I realized the little plunger that is actuated by the front brake lever was stuck, considering it's positioned in a place that takes the full blow of the weather&road grime they could have make the thing a little sturdier.

Fun fact; when I press the rear brake only the stop light shines brighter than when I press the the front brake only. Go figure

 

[Motogiro]

Update;
After some fiddling with it I realized the little plunger that is actuated by the front brake lever was stuck, considering it's positioned in a place that takes the full blow of the weather&road grime they could have make the thing a little sturdier.

Fun fact; when I press the rear brake only the stop light shines brighter than when I press the the front brake only. Go figure

How much difference in brightness? I would guess there could be some difference but there should not be a great deal of difference. You could have unusual voltage drop due to resistance somewhere that is abnormal.

 

[bricksrheavy]

How much difference in brightness? I would guess there could be some difference but there should not be a great deal of difference. You could have unusual voltage drop due to resistance somewhere that is abnormal.

It's quite noticeable - can corrosion/oxidation on the contacts cause the resistance? The front brake switch is from ebay so I guess the cheapo metals used for the contacts could cause it too?

I'll try disconnecting the switch and connecting the wires that go into it directly to rule the switch out.

 

[TownsendsFJR1300]

It's quite noticeable - can corrosion/oxidation on the contacts cause the resistance? The front brake switch is from ebay so I guess the cheapo metals used for the contacts could cause it too?.

Absolutely. Burned up contacts don't pass make for a good connection...

I don't buy knocks offs... Save a couple of bucks and the thing fails / doesn't perform like OEM..