need to determine how small a bettery I can use

[Boilermaker]

I have 1979 xs650. Kickstart only, headlight, two rear tail lightsbfrom and old chevybtruck tat also double as turn signals. No speed or tach. I am rewiring andvwould like to conserve space. How small of a battery can I use? Bike has seperatevregulator and rectifiers. Any thoughts. If so what brand and where?

 

[Jerm]

http://www.xs650.com/forum/search.php

 

[angus67]

the speed and tach are mechanical, so...makes no difference on electrical.
if your state dosnt require turn signals(and it probably does), and all you want is a headlight(lowbeam), and brake light, you can use a battery with a 7amp/hr.
I rigged my headlight switch for my 1980 to be only off/lowbeam.. but I also have cdi, turn signals, kick only.