Gravity Fed..
Gravity Fed..
..My priceless (£6.99 actually via eBay lol) pearl of wisdom when it comes to carb or fuel injection balancing. If your magnificent motorcycle is in need of a feed, that's despite the lack of its initial fuel tank for maintenance purposes. You could invest (cheaply) in a coat stand, whereby you can hang/suspend your secondary fuel supply in order to accomplish your balancing act.