On post 1970 BMW 2 Valve models (Airheads) the stock charging system work fairly well unless you are mostly doing around town riding. This is our first place to start before upgrading to a new aftermarket charging system!
- BMW Part No.12321244409
- Easy to install
- Can be adjusted with the gas tank on
- Adjustable up to 15 volts
- Fits all 1970 to 1995 2 Valve Twins
- Also fits many VW, Porsche, SAAB, BMW & Volvo cars with external voltage regulators.
We recommend setting them at 14.2 volts at 3500 RPM.