Z250 B1
- z250b1
-
Topic Author
- Offline
- User
-

Registered
- Posts: 69
- Thanks: 17
Re: Z250 B1
08 Sep 2026 17:36
What are peoples opinion on mirrors? You guys prefer oem or visibility?
I've noticed my bike has rectangular mirrors. While they seem to be era correct, i think the oem ones are circular (black/chrome)?
being larger, the current ones are probably safer, in theory. But they certainly change the look of the bike.
I've noticed my bike has rectangular mirrors. While they seem to be era correct, i think the oem ones are circular (black/chrome)?
being larger, the current ones are probably safer, in theory. But they certainly change the look of the bike.
Please Log in or Create an account to join the conversation.
- z250b1
-
Topic Author
- Offline
- User
-

Registered
- Posts: 69
- Thanks: 17
Re: Z250 B1
10 Sep 2026 04:57
Can you believe this thing is still using its original condenser. There's oem and aftermarket options at a premium.
or this is an option. Will get one and fit it tomorrow.
or this is an option. Will get one and fit it tomorrow.
Please Log in or Create an account to join the conversation.
- slmjim+Z1BEBE
-
- Offline
- User
-

Registered
- Enjoy Life! IT HAS AN EXPIRATION DATE!
- Posts: 1611
- Thanks: 1073
Re: Z250 B1
10 Sep 2026 05:41
Is the OEM condenser rated as 22 nF (nanofarad)? That seems out of range by an order of approximately 10. Every points condenser we've ever seen is in the range of 0.24 µF (microfarad).
An ignition condenser can be tested easily with a DMM that has a capacitance test setting.
Assuming the condenser & points are on the motor somewhere, is that capacitor rated for operating temps in the points housing?
Good Ridin'
slmjim & Z1BEBE
An ignition condenser can be tested easily with a DMM that has a capacitance test setting.
Assuming the condenser & points are on the motor somewhere, is that capacitor rated for operating temps in the points housing?
Good Ridin'
slmjim & Z1BEBE
A biker looks at your engine and chrome.
A Rider looks at your odometer and tags.
USA
1973 ('72 builds) Z1 x2
1974 Z1-A x2
1975 Z1-B x2
1993 CB 750 Nighthawk
2009 ST1300A
www.kawasaki-z-classik.com
A Forum tightly focused on all things Z1 and Z2.
A Rider looks at your odometer and tags.
USA
1973 ('72 builds) Z1 x2
1974 Z1-A x2
1975 Z1-B x2
1993 CB 750 Nighthawk
2009 ST1300A
www.kawasaki-z-classik.com
A Forum tightly focused on all things Z1 and Z2.
The following user(s) said Thank You: Wookie58
Please Log in or Create an account to join the conversation.
- z250b1
-
Topic Author
- Offline
- User
-

Registered
- Posts: 69
- Thanks: 17
Re: Z250 B1
10 Sep 2026 22:56 - 10 Sep 2026 22:57
Thanks for confirming the value. I wasn't sure if 22 was right.
220nf is same as .22uf
my original fears were true. Capacitance is ok, but 630v isnt enough. I imaging the oem caps are rated something crazy like 1000v+
Perhaps if I switched to electronic ignition 630v would be enough because no points?
But,thats an adventure for another day
220nf is same as .22uf
my original fears were true. Capacitance is ok, but 630v isnt enough. I imaging the oem caps are rated something crazy like 1000v+
Perhaps if I switched to electronic ignition 630v would be enough because no points?
But,thats an adventure for another day
Last edit: 10 Sep 2026 22:57 by z250b1.
Please Log in or Create an account to join the conversation.
- Wookie58
-
- Away
- Moderator
-

Registered
- Posts: 6888
- Thanks: 4333
Re: Z250 B1
10 Sep 2026 23:49
630v ???? where ???? system voltage is 12v and HT output is approx 15kv
1982 KZ1000 Ltd
www.kzrider.com/forum/11-projects/617631...-82-begins?start=192
kzrider.com/forum/faq-wiki/616810-electr...-fault-finding-guide
www.kzrider.com/forum/11-projects/617631...-82-begins?start=192
kzrider.com/forum/faq-wiki/616810-electr...-fault-finding-guide
Please Log in or Create an account to join the conversation.
- slmjim+Z1BEBE
-
- Offline
- User
-

Registered
- Enjoy Life! IT HAS AN EXPIRATION DATE!
- Posts: 1611
- Thanks: 1073
Re: Z250 B1
11 Sep 2026 03:06Yep, you're right. That trailing zero didn't register for some reason. 220nF is same as 0.22µF.Thanks for confirming the value. I wasn't sure if 22 was right.
220nf is same as .22uf
my original fears were true. Capacitance is ok, but 630v isnt enough. I imaging the oem caps are rated something crazy like 1000v+
Perhaps if I switched to electronic ignition 630v would be enough because no points?
But,thats an adventure for another day
Good Ridin'
slmjim & Z1BEBE
A biker looks at your engine and chrome.
A Rider looks at your odometer and tags.
USA
1973 ('72 builds) Z1 x2
1974 Z1-A x2
1975 Z1-B x2
1993 CB 750 Nighthawk
2009 ST1300A
www.kawasaki-z-classik.com
A Forum tightly focused on all things Z1 and Z2.
A Rider looks at your odometer and tags.
USA
1973 ('72 builds) Z1 x2
1974 Z1-A x2
1975 Z1-B x2
1993 CB 750 Nighthawk
2009 ST1300A
www.kawasaki-z-classik.com
A Forum tightly focused on all things Z1 and Z2.
Please Log in or Create an account to join the conversation.
- z250b1
-
Topic Author
- Offline
- User
-

Registered
- Posts: 69
- Thanks: 17
Re: Z250 B1
11 Sep 2026 04:22 - 11 Sep 2026 04:24
Where indeed.
For what its worth it found this...
"...capacitor secs are 0.24 +- 0.02 ufd, 1,000W VDC.
So yeah. 630v was way out of the ballpark.
For what its worth it found this...
"...capacitor secs are 0.24 +- 0.02 ufd, 1,000W VDC.
So yeah. 630v was way out of the ballpark.
Last edit: 11 Sep 2026 04:24 by z250b1.
The following user(s) said Thank You: Wookie58
Please Log in or Create an account to join the conversation.
Moderators: Street Fighter LTD
