BMW airhead ignition upgrade
The stock ignition on BMW’s venerable /5 and up airheads is generally very reliable. But with time — and mileage — hard parts like the mechanical advance unit wear out. Colorado-based Euro MotoElectrics has replacement digital ignition systems that dispense with the stock points and mechanical advance. Using an optical trigger, their electronic ignition provides full spark even with battery voltage as low as 7.5 volts for rock solid timing. $379. MC