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Idle Air screw and RPM method for setting

  • Thread starter Thread starter shawzygs850
  • Start date Start date
NP Slugs.

I too have been in the process of returning a GS850G to the road after a 7 year vacation. Money has been slow, so has my progress. But the laundry list that I posted is very true. I skipped a step or two and learned my lesson the hard way. Try skipping a step and you'll go back to number one again. For me, I'll be taking the carbs off for the 6th time tomorrow night for replacement boots (again) and new o-rings. While I'm at it, I'll actually check (set) float height since I'll have the carbs off. Then I'm hooking up the synchronizer and hopefully she'll run better. If so, new battery, hook up the front lights, and down the road I'll go. Then it is tires, registration, permit, and hopefully I'll be "done" finally...
 
Boots

Boots

Need a bit more help here.

I now realize why I didn't attempt to replace intake o-rings in the first place. On pulling carbs off, it seems that my intake boots do not have a removable o-ring. The o-ring is part of the actual boot itself, all 4 boots the same. Does this sound right for an 83 gs850? Has a PO 'glued' the o-rings in place?

I attached a pic for reference. This shows the o-ring as part of the boot and also shows the area of the boot with some cracks, however I assumed that as the o-ring itself and area the carb clamps to appear just fine, cracks where they appear in the pic will not in fact cause leakage.

Before I drop $200 on boots, has anyone attempted to fix a leaky boot using a compound of some kind.
 
Last edited:
The orings are on the other side of the boot....on the engine side. you have to take the boot off the engine to see them
 
shawzygs850 said:
After fiddling with this for over a month I am ready to call it quits.

- Should I simply take the machine to a wrench and have them set idle mixture and sync carbs before loosing any more hair; I see this as giving up which kills me but I need to know when to throw in the towel, I feel like I am wasting my time at this point with fiddle here, fiddle there, and no tangible result. Cheers
Click to expand...

If you have a "wrench" you are confident in he should be able to tell you what the problem is in short order. Put all the settings back the way they were in the first place, tell him the symptoms and let him tell you what he found. I wouldn't go "tell" him to perform anything initially. Certainly he will give you an estimate before proceeding? So you have to pay him $50 to tell you the problem. Hair is irreplacable. You're like the rest of us and all ready insane for riding a 26 year old toy. Popping on decel is definately a signal of lean mixture at speed and can hole your pistons given enough time. If I mess with a bike for one week and haven't solved the problem then I figure it's out of my league. I know I will start throwing unnecessary money at it that will not solve the original problem - only mask it further.

If you know your jets are clean and there is a proper fuel flow would be important to know before messing with 4 different idle settings. My 81 bike runs near always perfectly but sometimes will do off the wall things that only happen once - like not start! Then it won't ever happen again for years. Solution each time was a tiny shot of Ether. Go figure.
 
Just an update the replacement of intake rings made a signif difference. Popping pretty much non-existent. Old rings were so hard they could not have been doing much at all, go figure.

Off to have the carbs sync'd after sealing the airbox.

Thanks to all once again
 
I am idling too fast

I am idling too fast

1500+

Runs fine. Just wants to idle high.
Does each carb have to be set ?
 
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