Scooterotica

175 barrel and piston
28mm dellorto
Tsr Evo touring
Standard li125 gearing
Any idea on jetting ??
The carb was originally set up for af clubman
Remote filter

Do you know what's in there at present ? how does it run with new exhaust?
as a starting point I would try 50 pilot AV264 (266 might be a tad rich), X7 second clip, main 112-118 (would start with a 118-115, but may have to go smaller if running through a filter) that should get you running somewhere near

Sorry all was fitted previously and set up by owner . Since I fitted tsr Evo exhaust took it for new mot seems fine pulls through each gear nice no boggin down etc