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10 Posts
Greetings from Norway!! We're new here. When I say we, I mean myself and my 14 year old son who is sitting beside me breathing down my neck hoping to get some answers and guidance from this forum about his new bike.
Having saved up for a bike he didn't go with modern plastic but chose this really cool cafe racer conversion of a '75 Cb 125 B6 twin. He can begin practicing for his liscense already next year.
We bought the bike despite it being advertised with charging issues. It took 5 minutes on Google to find out that all of these 6v electrical systems are dodgy at best. Sure enough after 15 minutes of tearing around on the bike...it's back to charging the battery.
Ok so a 12v conversion it is then and we started lurking on forums trying to get some answers. We came across what seemed like a creadible sourse on "Chop ...something".
It was said that this is the way to go forward:
1) change to a 12v battery - bought a Yuasa YB3L-B (12V 3.2Ah 30A)
2) install a cheap bridge rectifier - the bike already had one
3) Change all bulbs to 12v
4) put in a 15A main fuse
5) 12v flasher relay
It was also stated that the stator put out more than enough current to run this set-up and the coil was also ok.
Ok, so we did all this and the bike is still no better - even a little worse.
We measured the output at the battery terminals:
- at idle: 10-11.5V
- at 4000rpm: 12.2V
- at 9000rpm: 13v
So then back to charging the battery after a little tearing around!
Back to lurking on forums.
It was also suggested to splice the yellow and white wires from the stator together - we did this...no change :/
Ok, we need some help here! Hourly rates at bike shops here are north of 200dollars/hr so money saved by doing things ourselves is well spent on getting his liscence next year.
Can anyone tell us exactly which components from which bike can be installed onto this bike in order to make it into a reliable 12v conversion - with all the benefits of a 12v system.
We are not going to become experts in small engine electronics! Can you guys help us with a precise shopping list? It is my understanding that stators and other components are readily exchangable from Cb175, 200 and 350?
Any help would be greatly appreciated even though we're probably going to get yelled at for asking about what for most of you is I'm sure quite basic - or even worse...coverred earlier
Cheers!!!
Having saved up for a bike he didn't go with modern plastic but chose this really cool cafe racer conversion of a '75 Cb 125 B6 twin. He can begin practicing for his liscense already next year.
We bought the bike despite it being advertised with charging issues. It took 5 minutes on Google to find out that all of these 6v electrical systems are dodgy at best. Sure enough after 15 minutes of tearing around on the bike...it's back to charging the battery.
Ok so a 12v conversion it is then and we started lurking on forums trying to get some answers. We came across what seemed like a creadible sourse on "Chop ...something".
It was said that this is the way to go forward:
1) change to a 12v battery - bought a Yuasa YB3L-B (12V 3.2Ah 30A)
2) install a cheap bridge rectifier - the bike already had one
3) Change all bulbs to 12v
4) put in a 15A main fuse
5) 12v flasher relay
It was also stated that the stator put out more than enough current to run this set-up and the coil was also ok.
Ok, so we did all this and the bike is still no better - even a little worse.
We measured the output at the battery terminals:
- at idle: 10-11.5V
- at 4000rpm: 12.2V
- at 9000rpm: 13v
So then back to charging the battery after a little tearing around!
Back to lurking on forums.
It was also suggested to splice the yellow and white wires from the stator together - we did this...no change :/
Ok, we need some help here! Hourly rates at bike shops here are north of 200dollars/hr so money saved by doing things ourselves is well spent on getting his liscence next year.
Can anyone tell us exactly which components from which bike can be installed onto this bike in order to make it into a reliable 12v conversion - with all the benefits of a 12v system.
We are not going to become experts in small engine electronics! Can you guys help us with a precise shopping list? It is my understanding that stators and other components are readily exchangable from Cb175, 200 and 350?
Any help would be greatly appreciated even though we're probably going to get yelled at for asking about what for most of you is I'm sure quite basic - or even worse...coverred earlier
Cheers!!!