Just to be clear on this, the level in the sight glass is with the bike vertical, not leaning on the side stand. When I had my Venture and my Royal Star, I used a mechanics mirror with an extendable shaft, so I could see the sight glass while straddling the bike to hold it vertical. Alternately a 1-1/2" to 2" thick piece of wood under the side stand will hold it almost vertical, just be careful not to bump the bike or turn the handle bars, as it could cause the bike to fall over to the right side .