1980 GS1000ET back from the dead.....I hope.

[Suzuki Mad]

Well done. Good job so far.

I'm CT2 Kent, if you want to borrow an Ultrasonic.

I boiled my carb bodies with some lemon juice and they came up quite good. Eventually got them vapour blasted for a really nice finish.



Be very sure the aperture in the float bowl is clear to allow fuel into the choke chamber and up the little brass pipe.



More details here:

https://suzukigs1150es.blogspot.com/2014/03/carb-float-bowl-choke-delivery-system.html

Greetings

Richard (Admin on the UK GS Owners Facebook Group)

Hi Londonboards.

CT14 area so a way away from you. Thanks for the offer. Might take you up on it when things free up a little.

Spent some time dodging the rain showers and started to pull the carbs apart. Each one individually so tops off, bottoms off main jet out and tube. Dip the brass in some cleaner and then blow it out. Cleaner in the bowls and down the tubes to make sure its all clear.

Still need to get the pilots out to make sure they are clean and clear for fuel.

All seemed OK till I ran fuel back through

Of course No 4 is the trouble one. Fuel pouring out of the top of the carb bowl (float bowl gasket) and then out the mouth of the carb (float needle not seating.) Seems odd as when you do a blow test the whole lot seems to be air tight in the closed position. The other three appear to be fuel tight.

Its getting there.

[londonboards]

I have some spare float bowl gaskets. I bought those kits and never used the gaskets as mine never seem to need replacing. They go on for ever if you can get them off OK.

Did you replace the valve seat O rings? By taking off the little cross head screw and pulling the brass seat out?

Are the carbs leaking when it's running or not running? Is fuel tap holding back the fuel when there is no vacuum from the running engine?

[Suzuki Mad]

I have some spare float bowl gaskets. I bought those kits and never used the gaskets as mine never seem to need replacing. They go on for ever if you can get them off OK.

Did you replace the valve seat O rings? By taking off the little cross head screw and pulling the brass seat out?

Are the carbs leaking when it's running or not running? Is fuel tap holding back the fuel when there is no vacuum from the running engine?

This is on the bench (well chest freezer actually) and the tank is a on off/tap.

Stripped them down again, checked and rebuilt them. Its not leaking from the float bowl gasket but from the opening. So something is not shutting off with the float needle in No 4. Can be the new O rings surely?

[hampshirehog]

Possibly the pin that hold the float on is very slightly bent and the float is jammed down. Not uncommon. Only way to get is to remove the pin and roll it on a dead flat surface and watch carefully.

[Suzuki Mad]

Spent some time on the carbs this morning and lunch time.



Pulled No4 apart once again and when I got the needle out found a 2mm strip of a slightly darker line than the bright surface of the rest of the needle. Cleaned the seat and the needle, rebuilt and tested. The carbs held fuel.



Gave the carbs an exterior clean with a tooth and bottle brush.



Left side been cleaned and right side uncleaned. Boy, they were dirty on the outsides.

[Suzuki Mad]

I'm still waiting for the pilot jets screwdriver to arrive in the post and I've got a few more bits arrived in the post.

So choices. Do I refit the carbs and run them in the hope of warming the engine up enough to get the 3 small bolts out between the head and the barrels or just go for for it and pull the head off.....

decisions, decisions, decisions......

[Grimly]

Running the engine won't get the three bolt holes any warmer than ten seconds of a butane torch will.

[Suzuki Mad]

Carbs sorted.

A 0.8mm x 4.0mm x 100mm screwdriver arrived in the post. Carb bowls off, pilots jets out....

2 pilots completely blocked, 1 partially blocked and 1 with only 1 small side hole clear........no wonder she wouldn't run on idle.

Into cleaning agent and a blow through with the airline and you can see through all the pilot jet holes.

Now back in the carb and ready to go back onto the bike.

[Suzuki Mad]

Been a bit slow here the last few days. Waiting on parts to arrive before taking the next step on the GS.


So I have been busy on the GS(X)1100ESD that's been left unloved since 2006. I did a full nut and bolt restore on her in 2005/2006 took her to a very large classic motorcycle show and it got slated. So I rode it home, parked it up and haven't touched it since. My own decision and I wasted a lot of expensive hard work by parking her up.

Rear brake is seized so I cant even roll her out of the garage to photograph her. This is what she looked like about 5 years ago.

[Grimly]

Who slated it, the rivet counters?
You get them at every show, nothing but wankers.
They'd have a pop at mine, but I'd just poke them in the nose, as it's nothing to do with them.
Full-on restorations have their place, and they can be nice for their own sake, but treading into the concourse restoration field leaves you wide open to the arseholes who think they're some sort of experts.
Personally, I like to see a bike that incorporates period improvements, or even radical safety-related modern updates, where necessary.

[Rob S.]

So I have been busy on the GS(X)1100ESD that's been left unloved since 2006.

Seems like a hard bike to leave unloved. Cycle World's first bike to break into the tens.

[Suzuki Mad]

OK, what did I do wrong?

Still no parts so got bored. What the heck its only a few bolts and screws......

And hour later and the carbs are back in the bike, buttoned up and ready to go. Odd thing, the throttle linkages seem very high and theres not a lot of turn on the twist grip from 'tick over' to 'full' throttle....

Blocked the vacuum pipe and fitted the external tank for a test....

Spun her over and thats all she would give me. No leaks from bowls or overflows but absolutely nothing. Not even a cough.

Pulled the plugs. 4 was damp, 3 not sure, 2 dry and 1 not sure. Cleaned all the plugs and checked each for spark and I had spark. Gave it another try. Nothing. Zip. Na-da.

Epic fail of the first degree.

I have to wonder if I put the throttle cable on the wrong way to have so little throttle movement and can only guess that I did a very bad job of cleaning the CV carbs for her not to fire up and run like a pile of s**t.

And to top it off, I can't find the tub with the tank cushions, tank retaining cushions and bolt and the bolt for the air cleaner.

So a bad day in all.

Going to take a day off tomorrow...

[Suzuki Mad]

Carbs, carbs and carbs......

Look away if you dont like bits.



Carbs on the throttle cable. Seem a little bit too open for my thinking..... Full throttle....



Full throttle seems a very short twist, less than quarter of a twist from idle to full on. This is Idle. Too far open?



And its all over the bench (insert Freezer as I cant get to the bench.)

Cant see anything that might have caused her not to run.

Baffled.

All I can see if that all the brass mains and there washers have gone black where they were a brass colour when I put them in. That's all I can see that wrong. All the passage ways blow clear with a compressed air gun and the jets are all clear. Just baffled. I know its been 15 years since I did one of these but this never used to be that hard to solve.

I'm going to find some tubs to put the bits in and call it a day. Fight this battle another day.

[Suzuki Mad]

Actually, now all over the bench.....(freezer)

[hampshirehog]

Just checking that you did connect the choke cable?