Need a sanity check:
Quick update of what I am running:
1977 750K
PD41A Carbs stock specifications
Stock Airbox with new K&N filter
4 into 1 exhaust.
Timing, points and all that jazz has been set.
Took the bike out today to confirm my suspicions that the accelerator pump might be bad. Well it is definitely not bad... I think I had myself convinced they were because of the bogging down above 40-50% throttle I just had never singled them out. In all gears I can flip the throttle back and it goes. There is no delay. So that is good, not sure why I wanted to blame the accelerator pump for a problem going above 40-50% throttle.
So the bike is bogging down I wanted to give it 100 miles of seafoam treated gas before I pulled them back out. The obvious answer for me would be main jets. Although I realize that isn't the easiest of answers. I was going to try to accelerate with the 50% throttle and as it struggled I was going to pull the choke and test. I made one attempt at this and wasn't comfortable accelerating, taking my eyes off the road and trying to screw around with the choke. I also know my apartment neighbors would hate me if I was out in the parking lot at 50% throttle.
So here are the next steps I am going to take after work tomorrow:
1) Pull all of the plugs. Take picture and post here.
2) If there is no sign of fouled plugs and they do in fact look lean... I am thinking of getting new idle and main jets. Looking at this thread I might want a similar setup to Lucky:
http://forums.sohc4.net/index.php?topic=106060.msg1194522#msg1194522#42 idle
#120 main
I will be posting my mixture screw setting soon. I don't remember off hand.