| Issues with acceleration.
Hello all,
I have what I'm led to believe is a Blata B1 Rep (watercooled). I took it out for the first time today and it seems to splutter in the low rev range. After a while the bike picks up speed and then eventually clears up and runs smoothly in the top-end but when I slow down and thottle back up its back to spluttering. It has no problems with starting. I'm using premium unleaded fuel with Motul 800 Off-Road Synthetic oil (25:1).
Any ideas what the problem may be? | 
