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i need help. i rebuilt the carbs on a 1978 gs750 with new seals standard jets and a good cleaning change the o rings on carb intakes,when i fitted them to the bike it started up fine but when i was adjusting the air screws on one carb it made no difference what way i turn it, any ideas jim
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Did your "good cleaning" involve a strip and dip procedure? It is possible that the passages inside the carbs are still plugged, if you did not do the full job. A little spritzing of some carb cleaner to make them look good does not do anything for the small passages INSIDE the carbs where the fuel and air go. It is also possible that the tip of the air screw is broken off, plugging the port. No amount of turning on the rest of the screw will move a broken tip. Broken tips are more likely on the fuel screws, as they have a finer tip, but it's still possible to bugger up an air screw.
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mine: 2000 Honda GoldWing GL1500SE and 1980 GS850G'K' "Junior"
hers: 1982 GS850GL - "Angel" and 1969 Suzuki T250 Scrambler
#1 son: 1986 Yamaha Venture Royale 1300 and 1982 GS650GL "Rat Bagger"
#2 son: 1980 GS1000G
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i must of missed somthing i will take them of and dip them.thanks for the replyComment
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Check the pilot fuel screw holes in the carb body and make sure they're not clogged by a broken off screw tip1978 GS 1000 (since new)
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