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Charging voltage
- Thread starter timtune
- Start date
Mad Mike
Well-known member
You're back in the game. 6.7v should come on around 2200-2500RPM, it should peak at about 7.5V at 5000RPM.
The system is anemic by today's standards but adequate for a classic bike -- doubtful you'll be doing much night touring.
I mentioned before that you can go 12v on that stator by swapping out a 12v regulator, battery and bulbs. I typically do that with older bikes as 12v low power options as a lot easier to find (bulbs, USB charger). Simply swapping the headlamp and signal bulbs for 6v LEDs will make your bike as bright as a late model.
Robbo
Well-known member
Best advice I can give you is make sure the ignition/timing is spot on before you move on to the carb(s) on any old bike. Otherwise you are running in circles.
Don’t forget valve adjustment too.
Also you need optimal air and fuel flow.
Stock clean/newish air filter?
Good fuel flow from the tank? Disassembled and checked/cleaned the fuel tap?
Clean tank?
When you disassembled and cleaned the carb, did you check the size and condition of all the brass too?
Also, carb float height can be quite finicky on the smaller cc bikes. I had a frustrating battle with the floats on a ‘74 CB200. Took all my time and patience to get them right. It had a huge impact on how the bike ran.
When you get it right, it shouldn’t be smoking like in your video above.
It’s a cool bike you have there
.
Sent from my iPhone using Tapatalk
Don’t forget valve adjustment too.
Also you need optimal air and fuel flow.
Stock clean/newish air filter?
Good fuel flow from the tank? Disassembled and checked/cleaned the fuel tap?
Clean tank?
When you disassembled and cleaned the carb, did you check the size and condition of all the brass too?
Also, carb float height can be quite finicky on the smaller cc bikes. I had a frustrating battle with the floats on a ‘74 CB200. Took all my time and patience to get them right. It had a huge impact on how the bike ran.
When you get it right, it shouldn’t be smoking like in your video above.
It’s a cool bike you have there
.Sent from my iPhone using Tapatalk
Last edited:
Thanks all.
Yes I am kicking myself for not checking the jet sizes especially after assembly I find a PO baggie with used carb parts (looks like he put a rebuild kit in - did that include different sized jets????
Smoking has calmed somewhat now that there is some kind of e gasket but still some from the pipe.
6.7V looked like about the peak short of a bit more maybe at WOT.
I've downloaded what I think is the correct manual and promised myself I would run through all the steps in the tune section. Cam chain tension, valves, ignition timing, etc. I'm great at promises it's my follow thru that needs work...
Yes I am kicking myself for not checking the jet sizes especially after assembly I find a PO baggie with used carb parts (looks like he put a rebuild kit in - did that include different sized jets????
Smoking has calmed somewhat now that there is some kind of e gasket but still some from the pipe.
6.7V looked like about the peak short of a bit more maybe at WOT.
I've downloaded what I think is the correct manual and promised myself I would run through all the steps in the tune section. Cam chain tension, valves, ignition timing, etc. I'm great at promises it's my follow thru that needs work...
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