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Bike 82' GS850GL Stock.
I just replaced my nasty looking, brittle Vinyl (home depot special) fuel and vacuum tubes with some nice PVC gasoline resistant tubes from McMasterCarr. While I had the carbs off the bike I did a bench sync of the butterfly valves (only had to fix the outside clutch side valve) and reset all of my idle air screws to 2 turns up from the end of travel (which I think I had them at 3 turns previously). I Also checked all the carb boots for rips or tears. I don't have a manometer set so I have to rely on the bench sync. Here is the strange part... my idle speed has magically become proportional to the wheel speed. When I pull the clutch in at 55 mph in 5th it idles at about 2.5-3k but and as I break (slowly) with the clutch in the idle speed drops with the bike speed until I idle at 1.2k at a stop. I have no idea how this is happening. It does the same thing if I shift into neutral and brake down from 50 mph. Before I did the work if I pulled the clutch in at 50mph the idle speed would very quickly reach 1.2k. I have also noticed a slight dwell in power when I gun it in 5th. Any guesses?
I just replaced my nasty looking, brittle Vinyl (home depot special) fuel and vacuum tubes with some nice PVC gasoline resistant tubes from McMasterCarr. While I had the carbs off the bike I did a bench sync of the butterfly valves (only had to fix the outside clutch side valve) and reset all of my idle air screws to 2 turns up from the end of travel (which I think I had them at 3 turns previously). I Also checked all the carb boots for rips or tears. I don't have a manometer set so I have to rely on the bench sync. Here is the strange part... my idle speed has magically become proportional to the wheel speed. When I pull the clutch in at 55 mph in 5th it idles at about 2.5-3k but and as I break (slowly) with the clutch in the idle speed drops with the bike speed until I idle at 1.2k at a stop. I have no idea how this is happening. It does the same thing if I shift into neutral and brake down from 50 mph. Before I did the work if I pulled the clutch in at 50mph the idle speed would very quickly reach 1.2k. I have also noticed a slight dwell in power when I gun it in 5th. Any guesses?
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