Modern Vespa

Had to pull front brakes hard couple of days ago and since then the lever seems to have loosened up a bit and has an inch or so play in it - what is the best way to tighten it up? Any guidance will be appreciated.

It sounds like you don't often use the front brakes hard ( not a criticism!)

Perhaps one or more pistons may be sticking so possibly the calipers might be in need of a bit of clean up.

This is really a general servicing issue. The pads and calipers need to be removed and the calipers cleaned up using something like WD40. The pistons need to be pushed fully back into the housing keeping a close eye on the fluid level to make sure it doesn't overflow at the master cylinder. ( Do one at a time ).

When the pads are replaced apply copper grease to pins and all metal surfaces that are in contact. This includes the back of the pads but obviously taking care not to get grease on the pad surfaces or disk.

When everything is reassembled remember to pump the lever to get it back to normal and check that fluid level is correct.

Thanks roadster