A little update:
Patience is not my strong suit. I can pull these carburetors off in my sleep now, bing bang boom, they’re on my work bench. I wanted to check mechanical operation and check all the jets and passageways for any obstructions.
First off , I wasn’t happy with the choke operation, it felt sticky and like something was in a bind. I took all the linkage off and I checked the individual chokes. The one on the Right carburetor was not working smoothly. I pulled it apart and cleaned up the inside then applied grease to all the linkage friction points. Put it back together and now it’s working much smoother.
I checked the diaphragms for proper operation and observed the needle jets to insure that nothing was sticking or binding.
Then I broke both carbs down and checked to make sure both needle jets were installed properly and that the clip was in the proper location. I also did a visual inspection of the float valves and and mains and pilot jets, all were clear and clean.
With all the jets removed I blew compressed air through all the carb openings and checked for blockages, everything was good.
Next I filled a bowl with steaming hot water and held my floats under to check for leaks, all was good.
Then I checked my float levels. The last time I had the carbs apart I remember changing one of the float heights. When I checked them today one the carbs seemed well off the mark.
Let me show you what I believe happened. I use a little slip of paper that I have a line drawn on at 24mm to set float levels with.
If you flip that paper over , the distance to that line is 26mm.
I think I inadvertently measured one set of floats with my paper upside down, because when I flipped my paper it was exactly the height of my float. Hmmm. Note: I know to measure from the gasket surface. I’m holding up the paper to show the camera.
So floats are now both set at proper height.
One more question, inside my replacement carb body , this raised bead that seals the gasket, has been rather flattened in a few spots. Could this be causing any fueling issues?
So I worked on a sticky choke mechanism
I re set an incorrect float height.
And checked all jets, floats and passageways for any problems.
Tomorrow I will throw them back on the bike and re set the air mix screws and balance them. I think I will also throw a clean set of plugs in that I have lying around.
Fingers crossed.
