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1988 GS450 carb rebuild

  • Thread starter Thread starter chris032188
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chris032188

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This is going to be my first carb rebuild. Anyone have any tutorials and/or guides that will help me like this? Or just some helpful pointers!
 
COMPLETE tear down. New o-rings from Robert Barr (cycleorings.com). Dip them in Berryman ChemDip for 24 hours or run them in a sonic cleaner (ran each carb for 2 hours in 50/50 vinegar/water solution personally). New carb to air box boots if they are getting hard. Make sure the air box is sealed tight. New Air Filter. All I can think of off the top of my head.
Edit: Check the intake boots for dry rotting, cracks, tears etc. Bench sync the carbs then do a vacuum sync once the bike is back up and running. Drill out the fuel screw cap and reset the fuel mix to 2.5 turns out.
 
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I am having an issue where when I Rev. The Bike the bike takes a long time to get back to idle. Almost like it's still dumping fuel even after I let off gas. I checked throttle cable and it isn't getting stuck. Anyone have any info on this? Also I noticed on my tank where the fuel garage connects to there is a brass barb. Does anything connect to that or is that there for just fuel garage.
 
Hanging idle usually indicates air leaks. Intake boots, boots from carbs to airbox, airbox itself.
 
Check the newbie mistakes thread linked in my signature for info on some of the most common problems...
 
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