Jetting Help - '78 KZ650 D1

I would think that would be fine.

The fourth slot is fine. You probably should try riding the bike with the #110s and #17.5s before adjusting the jet needles. Trying to make a lot of changes at the same time can give confusing results.

Ok, will do. Thank you very much for your help.

I still have some other things to do with the bike, so I'm hoping to have it out in about two weeks.