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Need Help with my 85 GS550ESF Twin Carbs

  • Thread starter Thread starter Colorado85gs550
  • Start date Start date
It's a dark Plum Purple.....I have a gallon of it for shooting the boat I've been restoring so I thought I'd use the leftovers for the bike:D
 
I've rebuilt the petcock and it fired right up........I drove it around the block, pulled into my driveway, and put it on the sidestand. I let it idle for about 5 minutes then it died!

I let it cool down for 1 hour, choked it, fired right up! Ran great until it warmed up after about 10 minutes....then BAM, it dies. Won't restart unless I spray starter fluid in it then it won't stay running.......

I let it cool for another hour just to check, I choked, it turned over a few times then fired right up ran for right around 10 minutes again and died. I haven't a clue now..........is there some kind of vacuum that causes these carbs to pull fuel that if it loses the vacuum it won't supply fuel?

It fires on starter fluid so I have to eliminate a coil/electrical issue, it isn't getting fuel for some reason. Why would it get fuel until it warms up? Is it "Vapor Locking"?
 
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