That makes me more nervous that a 2x4 under the center stand.Why? If I may ask.
High CG and narrow jack.
I have that same style jack. Originally bought to use with old KZ with center stand removed. It actually work great and is way more stable than those pictures would lead you to believe. The black adjustable lift posts are also completely useful. I haven't found a good motorcycle jack that's cheaper, however, there are more expensive ones that are less versatile.
I guess I don't understand why you think the bike on the center stand on a 2x4 is not stable, or at least less stable than the jack? I don't know either. I just don't feel comfortable with that method. Besides, it's only going to give me 2" in height, not to account for any height lost if the center stand sinks into the 2"X4"? Heck, make it a 2x6, which is what I use. I have some left over scrap that I use.
So I found this.
Could you share more info - where, model, etc
thanks