Hello forum, I'm new here, I would appreciate the help.

[facundo duarte]

@Calum That's right, I already tried with and without a snorkel. without it works better in wot, although it still needed a little more, that's why I tried removing the yeis that is screwed to the frame. If we look at the problem with the naked eye it would suggest that I have a main jet that is too rich, however I checked its sizes including the pilot and they are fine, they correspond to the DTR model.

[facundo duarte]

@Calum Now that I look at it I don't know if it has anything to do with it, but I have a four-wire connector disconnected near the water tank in the back, apart from the one for the lights and indicators. I read that it is for the neutral relay but it doesn't have it, I have to attach a cable or something. Could it have something to do with that?

[Calum]

I'd leave the jetting alone, Yamaha spent a lot of R&D in the jetting.

You should be running the bike with the snorkel in as it's adverse to performance to remove it.

Make sure that the carb boot is clear of any debris.

[facundo duarte]

I agree @Calum , I will let you know if there is any news. Did you see the message above about the neutral relay?

[SpookDog]

@facundo-duarte

There are loads of unused block connectors all over my 1988. Just cause it’s there doesn’t mean it HAS to be used…

Your jetting is perfect for a late model Mikuni 28mm flatslide…

I’d try removing the side of the air box yourself (don’t take somebody else’s word on it) and remove the the foam element. They fall apart over time, especially the aftermarket ones….
They need cleaning with solvent, or petrol but make sure it’s proper dry. Then you have to wet it with oil and squeeze out all the excess…