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80 1000E not idling

  • Thread starter Thread starter drewandkellie
  • Start date Start date
D

drewandkellie

Guest
Ok I have been learning how to work on these bikes for almost a decade and I am getting a little better. My weak link has always been getting my carbs perfect after cleaning them. Well, I needed to clean the carbs on by Bone stone 80 1000E. I decided to rebuild a set from an 80 1100E and set them up for the 1000, being as they are the same bodies. Didnt want to drill out the air screws on the originals)
I bought an ultra sonic cleaner, filled it with Gunk Carb dip and systematically cleaned the bodies. I then reassembled them using new gaskets and o rings. I put in
new air mixture screws (1.5 turns out)
40 pilot
190 air jet
107.5 main
I set the floats at 22mm. I Then took them to the bike and wrestled them in
The bike fired right up, no leaks, and ran great as long as the choke was cracked open, as soon as I closed the choke it stalled.
I played with the air screws to no avail
As I last ditch I shoved a rag in th air box covering the hole where the filter would go, The bike idled!! "Oh So it wants gas I figured."
I then installed 42.5 Pilots
Ok, but I still needed to restict the air holes in air box. I went to 45 pilots, Eureka I got it to idle beautifully, and then I was able to synchronize the carbs. After synching the bike sounded great. I dropped it in gear only to find that it stutters just of idle under a load.
I figured , with the 45 pilots now its too rich, so i go back to the stock 40 pilots thinking that the synch was the problem all along. Now with the 40 pilots in she still will not hold an idle. I taped over the holes in the bottom or the air box and it idles beautifully. But it has no power under load and cant run at all over 3000rpm(I figured that would happen with the air box holes taped over.) Im taking a break and figured I'd ask you experts for help. Truth is the carbs feel like they want to run great. I think I just have something screwed up. The best it ran was with the 45 pilots, it is werent for the low circuit stubmlimb it would be fine. I havent tried 47.5 pilots yet but Ive got em. HELP!!
 
What about returning the bike back to stock? Stock sized jets, fix the airbox sealing issues? Just a thought...
 
Sounds like an vacuum leak, have you spritzed around the carbs and manifolds with carb cleaner? If there's a leak the revs will climb when you hit the offending spot. Also how are the manifolds? Soft, good o-rings, and not warped on the head side? If they are warped true them with a file and add new o-rings liable help. Did it to mine.
 
Nessism said:
What about returning the bike back to stock? Stock sized jets, fix the airbox sealing issues? Just a thought...
Click to expand...

What he said

Your airbox is causing a lean condition. Fix the airbox and put the stock pilot jet back in

You are compensating partially for the lean condition with the larger pilot jet, but you're just chasing your tail on that.

How many more times do you want to yank the carbs?
 
Big T said:
What he said

Your airbox is causing a lean condition. Fix the airbox and put the stock pilot jet back in

You are compensating partially for the lean condition with the larger pilot jet, but you're just chasing your tail on that.

How many more times do you want to yank the carbs?
Click to expand...

I agree with both of the above gentlemen, go back to stock and be sure the everything from the airbox to engine is sealed correctly.
 
Ditto on the the stock recommendation. Try playing with the idle speed as well. My bike bogged until I closed the PO's modded airbox holes.
 
thanks

thanks

That all makes sense to me. All my rubber is original. I just ordered new
-intake pipes/boots
-O rings
-rear carb boots
-air box connector boot
from babbits ($193).
I figured after 32 years the ole' girl deserves all new rubber.
Ill let you know when I get it and install it.

Thanks so much
 
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