Welcome, Guest
Username: Password: Remember me
  • Page:
  • 1
  • 2

TOPIC:

Z1 tail light-bulb lifespan 24 Nov 2021 05:40 #858283

  • Move0ver
  • Move0ver's Avatar Topic Author
  • Offline
  • User
  • Posts: 210
  • Thank you received: 40
So over the past 10 years of owning my Z1, I've had to replace a burned out tail light bulb 5 or 6 times.
This is both with the original wiring, and a new wiring harness, as well as an aftermarket housing and the stock Z1 light housing.

The fact that it's the first light to burn out makes sense given that it's the one that's on all the time, but still I think 5 times in 10k-15k miles is excessive.

Is this something anyone else is experiencing?

Please Log in or Create an account to join the conversation.

Z1 tail light-bulb lifespan 24 Nov 2021 05:55 #858284

  • Scirocco
  • Scirocco's Avatar
  • Offline
  • Premium Member
  • Never change a running system
  • Posts: 3301
  • Thank you received: 1445
In most cases the light bulb didn´t burned out. The intensive vibrations, like a loose light bulb socket, can break the light bulb filament really quick.

Please Log in or Create an account to join the conversation.

Z1 tail light-bulb lifespan 24 Nov 2021 06:18 #858285

  • Move0ver
  • Move0ver's Avatar Topic Author
  • Offline
  • User
  • Posts: 210
  • Thank you received: 40
Oh I definitely agree.
After the third time or so of it happening, I looked into LED bulbs, but the general consensus I found was that those were even less durable than the standard ones. That was a few years ago however.

I know Webike sells some pretty nice LED panels that fit inside the standard Z1 lens.  I'll probably look into that.

It doesn't help that most of my riding is at 75-85mph just to keep up with traffic  (texas... the one star state.... it's like mad max here).

Please Log in or Create an account to join the conversation.

Last edit: by Move0ver.

Z1 tail light-bulb lifespan 24 Nov 2021 08:42 #858288

  • 650ed
  • 650ed's Avatar
  • Offline
  • User
  • Posts: 15429
  • Thank you received: 2836
For sure something is wrong. I've owned my 1977 KZ650-C1 since it was new (44 years / more than 62,000 miles) and it still has the original bulb that works fine.  Ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

Please Log in or Create an account to join the conversation.

Z1 tail light-bulb lifespan 24 Nov 2021 08:47 #858289

  • Warren3200gt
  • Warren3200gt's Avatar
  • Offline
  • User
  • Posts: 762
  • Thank you received: 238
Vibration is the problem. It'll kill bulbs quicker than a quick thing. Make sure all the rear fender and light bracket bolts are tight and the rubber dampers are in place and still er,.... Rubber rather than solid/split blocks of old rock solid ex rubber. 

Please Log in or Create an account to join the conversation.

Z1 tail light-bulb lifespan 24 Nov 2021 09:52 #858291

  • cb900f
  • cb900f's Avatar
  • Offline
  • User
  • Posts: 95
  • Thank you received: 23
The quality of bulbs produced today probably has something to do with it.

Please Log in or Create an account to join the conversation.

Z1 tail light-bulb lifespan 24 Nov 2021 12:27 #858294

  • F64
  • F64's Avatar
  • Offline
  • User
  • 81-KZ440D2
  • Posts: 669
  • Thank you received: 180
I would look into the led panel. More for the instant on benefit.

I initially tried a Philips led bulb and that didn't work. You need a well-designed and polished reflector to match the output of a bulb with older taillights. The led was much dimmer compared to the bulb. This was 4 years ago though. 

You may be pushing a higher voltage through the incandescents causing them to die faster.

 
81-KZ440-D2.
Louis Dudzik's GM HEI ignitor conversion installed 2015 s3.amazonaws.com/gpzweb/Ignition/GPZgmHEImod.html
Motogadget m-unit blue installed 2017.
LIC, NY

Please Log in or Create an account to join the conversation.

Z1 tail light-bulb lifespan 24 Nov 2021 12:37 #858295

  • Move0ver
  • Move0ver's Avatar Topic Author
  • Offline
  • User
  • Posts: 210
  • Thank you received: 40
Yea, I'll likely get this:

japan.webike.net/products/19873418.html

I just need to see if I'll need a resistor to keep the brake light failure indicator from turning on in the tach.

Please Log in or Create an account to join the conversation.

Z1 tail light-bulb lifespan 24 Nov 2021 12:37 #858296

  • hardrockminer
  • hardrockminer's Avatar
  • Offline
  • Sustaining Member
  • Posts: 2050
  • Thank you received: 583
Almost all of the bulbs on my Z1B are original...including the tail light.
I have several restored bikes along with a 2006 Goldwing with a sidecar. My wife has a 2019 Suzuki DR 650 for on and off road.

Please Log in or Create an account to join the conversation.

Z1 tail light-bulb lifespan 24 Nov 2021 15:54 #858300

  • Mikaw
  • Mikaw's Avatar
  • Offline
  • Sustaining Member
  • Posts: 3411
  • Thank you received: 878
I upgraded to all LED’s on my ‘78. I had to leave the brake light dash light as incandescent to get everything to work. if I tried to install an LED in its place the brake light failure relay would make the dash bulb glow dimly. I upgraded to LED flasher units and everything works sweet. Does the Z1 have the brake light failure relay?
1976 KZ 900 A4 kzrider.com/forum/11-projects/613548-1976-kz-900-a4
1976 KZ 900 B1 LTD
1978 KZ 1000 B2 LTD
Kowledge Speaks, But Wisdom Listens.
Jimi Hendrix.

Please Log in or Create an account to join the conversation.

Z1 tail light-bulb lifespan 25 Nov 2021 08:29 #858322

  • slmjim+Z1BEBE
  • slmjim+Z1BEBE's Avatar
  • Offline
  • User
  • Enjoy Life! IT HAS AN EXPIRATION DATE!
  • Posts: 917
  • Thank you received: 399
Z1's were fairly notorious for overcharging.  Mama Kaw made many mods to the voltage regulators because of it.

After making sure the battery is fully charged & healthy, check the running voltage.  14.2V ~ 14.5V @ 3,000 RPM is fine.  Over 15V is not.   It could be that overvoltage is reducing bulb life.

Good Ridin'
slmjim & Z1BEBE
A biker looks at your engine and chrome.
A Rider looks at your odometer and tags.

1972 Z1 x2
1974 Z1-A x2
1975 Z1-B x2
1993 CB 750 Nighthawk x2
2009 ST1300A

www.kawasaki-z-classik.com
An enthusiast's forum focused exclusively
on all things Z1, Z2 and KZ900.

Please Log in or Create an account to join the conversation.

Z1 tail light-bulb lifespan 25 Nov 2021 14:10 #858329

  • Move0ver
  • Move0ver's Avatar Topic Author
  • Offline
  • User
  • Posts: 210
  • Thank you received: 40
checking charging voltage is a good idea... though the wiring harness is brand new and the RR is a new PMC unit as well.

Please Log in or Create an account to join the conversation.

  • Page:
  • 1
  • 2
Powered by Kunena Forum