Hi guys,

Normally a 500cc bottle is about right. However I found with the new Virtus, you need more time for the break in. If you only use 1 fuel bottle it will not be ready to perform at its best. I would go through the first bottle really on the rich side. Keeping it around 190-205 degrees. For the second bottle keep it around 210-220. Always run the bottom rich in this process as well. One the 3rd bottle you can start running it with a rich race setting. By the fourth bottle you can run it full out.

This is just what I found when I did my first ones.

DJ Apolaro