[Flip]

175 Main Jet is standard for a Dynojet Stage two kit, to fit fitted with open pipes and a cut open air box lid and free flowing filter so it may not be as messed about with as you think it has.

The Main jet is a press in jet secured by a plate next to the large headed Mikuni jet which you have to remove to free the plate- there should also be a little O-ring fitted to the Main jet (the one marked 175).

As for your pilot jet being 1.3 rather than 1.4 that is so close it probably wouldn't matter and may have been fitted at the factory if that is all they had in stock- remember Ducati just bought in the carbs from Mikuni and Dynojet never change this anyway.

The Pilot circuit is roughly the first 25% of throttle opening and the bike should run at idle whether the air box is fitted or not at that point- it just won't take a handful of gas.

Fit the Circlip on the needle on the fifth groove from the top- there should also be a little (Dynojet) washer that sits above the clip

Fuel mixture screw backed out 2.5 turns from fully (but lightly) seated.