Mydlyfkryzis said:
What is the model of the carbs? There are at least three different settings, they have slightly different model numbers.
745A 1 &1/8 TURNS OUT
745B 749A 750A 754A 1 & 5/8 TURNS OUT
747A 1 & 3/4 TURNS OUT
There you go.
This will get her started and running.
First step is synchronizing. You will need a pair of gauges for this. "bench sync" may get you close...but gauges will let you get them set up properly. While adjusting the sync screw the idle speed may want to drop, Turn the idle speed adjustor in to maintain close to 1200.
Until properly synchronized, you will be waisting your time trying to tune anything else, for optimal performance.
There really is no "standard" setting for A/F. They are externally adjustable for a reason. As there are many factors that effect were they need to be set. (condition of air filters, Altitude and air temperature. All contribute.)
Install filters (and complete air boxes, if you plan to use them)
Keep in mind with A/F adjustors on 360 carbs, out = richer mix, in = leaner mix. Opposite of many other bikes.
Also, if you need to go more than 2 turns out w A/F adjustors...something may not be right. Air leaks, Poor filters, clogged/dirty idle circuits, float settings...etc.
Park the bike on its center stand (level). Fire it up and let her warm up to operating temperature, choke fully open. Turn idle adjustor to achieve 1200rpm. Then turn the A/F adjustors for "fastest idle speed". (Meaning = best mixture for most power and best fuel economy. Easy to start, both hot w choke open and cold w choke closed + wont carbon foul plugs at idle being too rich + wont overheat at idle being to lean) All the while, you will be re-adjusting the Idle speed adjuster down to maintain as close to 1200 rpm as possible.
So see, At the end of the day, it doesnt matter how many turns are on them. As long as both carbs are adjusted to the fastest possible idle and idle speed is set to 1200.
If youve got them set up properly when the outside air temp is 40 degrees and find they need to be re-tweaked a bit when its 90 degrees. You know youve got them dialed in tight.