Ordeal

Hi all. I just wanted to share and thank you all for your posts, without which I would have set this bike on fire and rolled it into a lake. I bought a 79 kz650D sr from a guy who "found it" in a barn with a 20 year old tag. He only got it to run a little and never up to speed. I took her on and have had a little dream and a little nightmare and hopefully I'm back to dreaming.  First the rear brakes needed to get pressure so I hit that. I went through an  online manual and did just about everything it asked me to do. I had her running for a week but could never clear 4k rpm so I took her back apart and I thought I did everything right.  I changed out the jet needles bc they came w the rebuild kit and I put it all back the way I found it mostly. 
I should add here that it took a week to get it running the first time and that was after stepping the mains from the 92.5s that were in it to 102.5s. So finally tonight after 3 weeks of it being way worse and bogging immediately upon hitting the Throttle, I revisitrevisited the needles. I checked the new against the old a little closer and found a size difference at the bottom and for the first time I took real notice of the fact that there were 2 plastic washers on each needle. One above and one below the c clip. Which was clipped in the 3rd slot. So, I put the original needles back sans washers and bench synced everything up again. I'm getting to be a bit of an expert by now and I put her on the road expecting more of the same issue. I was floored. She hit every rpm on the dial she took me for quite the ride and I'm just so passed that a few little plastic washers have caused me so much pain. I'm excited to give her a real test tomorrow during the day but for now, I will dream. Stock airbox new points and condenser air screws only on the carbs if I think of any other items, maybe I'll come back and show her off. 

Sometimes the smallest thing can trip us up. Glad you have it sorted out.

Generally perseverance pays off - good to hear things are better for you now.