First Carb Job Done! Sorta...

[srg]

That doesn't include new drain screws that are $5 each as per that howto

I made an attempt to locate matching bolts at a hardware store to no avail. Apparently it's a metric thread with a unusual pitch to it. *shrugs* Maybe McMaster-Carr would have it cheaper.

 

[JMHJ]

Many thanks to Robert Barr for his great O-ring kit...

I pulled the carbs off this weekend and replaced the intake boot O-rings (which were unbroken, but pretty much flat).

I got into the carbs again tonight... I turned them over and blew on the fuel intake pipe... leaked air like crazy. The needle seat and other float O-rings that go to the start circuitry were brittle garbage. After replacing those, I couldn't make them leak by blowing on the fuel inlet.

I see how badly they needed replacing now. I think I'll get another set of O-rings just to have for later. Maybe that'll jog my memory about the correct way to do this, should I live long enough to need to do it again.

All I need to do now is check float heights, break the carbs apart again to replace the fuel inlet seals (which are more like bushing-type seals instead of O-rings), put them back on, synch, and then adjust the pilot screws... I may find some more adventure there, but I hope not.

I'll be really surprised if this didn't do the trick.

 

[Steve]

I think I'll get another set of O-rings just to have for later.

For those of us who buy bikes or work on them for others, having a set or two 'on-hand' makes sense. However, if this is your only GS, you won't need the new rings.

A few years ago, I was doing some work on my wife's bike and figured I would go through the carbs to see how they looked. It had been six years since I had cleaned them and installed the o-rings, but everything looked GREAT.

.

 

[JMHJ]

Ahhh... Good. Yes, this is my only bike.

 

[Steve]

The o-ring set is certainly inexpensive enough, but you would probably lose it before you needed it.

.

 

[JMHJ]

The o-ring set is certainly inexpensive enough, but you would probably lose it before you needed it.

.

Yeah, you're probably right. I'm swamped with "stuff" as it is.