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Retuning Pilot Circuit on 1977 GS550

  • Thread starter Thread starter Guest
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G

Guest

Guest
I just rebuilt the carbs on my '77 GS550 the other day and while removing the float bowl I accidentally removed the pilot fuel screws in one of the carbs. I counted two turns out on one of the other carbs and did the same for the carb I messed up. I looked in the FSM for a baseline of how far to turn out the pilot fuel screw but noticed it said "do not disturb these screws" referring to the pilot fuel screws. Needless to say I'm a bit freaked out by that. Could I set the pilot air screws two turns out and tune the fuel screws until I get the highest idle from the bike? I do have a carb sync tool. Will it help me with my problem? any insight would be greatly appreciated.

Thanks
Matt
 
Read this...http://www.thegsresources.com/garage/docs/vm_carb_rebuild.pdf

You can't clean the carbs with those needles in. Air screw should be set at 1.75 turns open and fuel screws at 3/4 of one turn open. Becareful or you will break the tips of the fuel screws off.

If you didn't replace the intake pipe boot O-rings you should do it now.
 
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