Air Mixture Screw Settings for '83 550?

[Anonymous]

I have a 1983 GS550L.

I recently cleaned my carbs, and I'm not sure if I got the air mixture screws set correctly. I counted 3 1/2 turns back from bottom, but that does seem a bit high. Could someone share their thoughts as to what the best setting is for them?

Also, what are people's opinions about the value of a carb sync? Do I need to do that after a cleaning? Or, is it just the icing on the cake?

Thanks,
Scott

[Billy Ricks]

The best way to set the mixture screws is to let the engine warm up good then adjust each one for the smoothest, highest idle. You'll usually find a spot that is only about 1/2 turn wide at most where the idle gets sweetest. You can synch them fairly close without the tool. Just use a small drill bit or something to check each butterfly opening and set them all against number 3. They won't be perfect, but they'll be good enough to get by.

[KennyJ]

Just did my 85 550E carbs a couple of weeks ago, the screws were between 2 (leanest) and 2.5 (richest), thus you could start at 2.5 and work down.

Kenny

[Anonymous]

Where is the air fuel mixture screw located on the 550