R100GS with Bing alcohol proof floats

[Jean]

water in the gas is never good.
I re-read the opening post. When you buy the float kit, there are instructions on how to set the level.
So now I wonder...who installed the independent float kit? and what did they do with the paperwork??

[Deleted User 62]

Well, that fixed the stumble on acceleration! It pulls like a freight train all the way from idle to 6800 rpm. Now I'm chasing a stumble on deceleration, maybe it was too lean... Don't know who installed the float kit. Looks like it's been on there awhile, stay get patina an' all...

[Deleted User 287]

So now I wonder...who installed the independent float kit? and what did they do with the paperwork??

I'm betting it is the owner previous to the current one. Long gone.

[melville]

The basic secret of carb function is that inside each carb are thousands of tiny gnomes; each with a small bucket. As you open the throttle, more of these gnomes are allowed out of their house and into the float bowl, where they fill the buckets and climb up the carb's passages to the intake, where they empty their buckets into the air stream. But, if you don't ride the bike for a while, bad things can happen.

Tiny bats take up residence in the chambers of the carb, and before long the passages are plugged up with guano. This creates a gnome traffic jam, and not enough bucketfuls of fuel can get to the engine. If it gets bad enough, the gnomes simply give up and go take a nap. The engine won't run at all at this point. Sometimes you'll have a single dedicated gnome still on the job, which is why the bike will occasionally fire as the gnome tosses his lone bucket load down the intake.

There has been some research into using tiny dwarves in modern carbs. The advantage is that unlike gnomes, dwarves are miners and can often re-open a clogged passage. Unfortunately, dwarves have a natural fear of earthquakes, as any miner should. In recent tests, the engine vibrations caused the dwarves to evacuate the Kawasaki test vehicle and make a beeline for the nearest Suzuki dealership. Sadly, the Zukis were fuel injected and so the poor dwarves met an unfortunate end in the rollers of a fuel pump.

Other carb problems can also occur. If the level of fuel in the float bowl rises too high, it will wipe out the poorer gnome housing in the lower parts of the carb. The more affluent gnomes build their homes in the diaphragm chamber, and so are unaffected. This is why the bike is said to be "running rich".

If the fuel level drops, then the gnomes have to walk further to get a bucket of fuel. This means less fuel gets to the engine. Because the gnomes get quite a workout from this additional distance, this condition is known as "running lean".

The use of the device known only as the 'choke' has finally been banned by PETG (People for the Ethical Treatment of Gnomes) and replaced by a new carb circuit that simply allows more gnomes to carry fuel at once when the engine needs to start or warm up. In the interest of decorum, I prefer not to explain how the 'choke' operated. You would rather not know anyway.

[SteveD]

Another thought came to mind as I was reading the thread...a similar shuddering thing happened to my RS a few years back. I just happened to be close to 2valve up near Glen Innes and we sorted it. Blocked main jet. It might be worth dropping the jet stack and inspecting/cleaning.

[Zombie Master]

I think the problem is the seat.

[Jean]

Steve, I also found that was the problem with mine. I had not been removing the larger part of the main jet and discovered a load of jelly-like crud up in there.
Cleaning it out (using a toothpick in solvent) made all the problens with acceleration go away!