I finished the work on the carbs today. Wow! Much stronger and smoother running.
My Manometer:
I built this manometer with long tubing connectors but I also put a resonator/absorption chamber (piece of pipe) in each line that serves 2 purposes. 1) The added volume of air in it absorbs most of the pulse fluctuations making the meter easy to read. And 2) these pipe chambers are large enough that any one of them will hold
all of the fluid in the entire manometer system thereby eliminating the worry of sucking anything into the engine if a leak developes somewhere.
My Valk hooked to the manometer:
I use short pieces of copper tubing connected to intakes with short pieces of viton to keep my plastic manometer tubing away from hot parts while syncing the carbs.
This is what I found when I got the carbs off and began to go through them: 5 bad air cut valves, a bad PAIR control valve, and cracked hoses on the air cut valves. I had to laugh at myself because I had read on the board that replacing vacuum hoses was a good place to start when trying to chase down leaks and I had replaced all the hoses on the manifolds but never noticed the hoses to the air cut valves.
Since 5 out of 6 air cut valves were leaking and I did not have the budget to buy them this month, I plugged each of the bad ones off. I figgured I would start with the pilot screws a bit farther out than for normal just to keep decel popping down. Well I did not notice any decel popping so I will adjust these a little bit sometime soon.
Anyway, the front wheel is leaving the ground when going into 2nd so I think all is doing pretty well now. It is still not as fast as it was when I bought it, but that is another story.
Wolf
