Gs1000 carbs

[gshub]

my Gs1085s fires up easley will only run on 3 cylinders we have so far replaced dynas ignt
for a Boyer ignition set it up, coils green dyna 3ohm, dyna leads tried 3 sets of plugs
so it isnt them checked compresion over the four pots it averages out 170psi on each cylinder.
just had valve shims checked and sorted.
still no differance so is there something stuck i ask in the fuel ways in the number 2 carb which is stopping it to work as we have checked jets sprayed no end of carb cleaner in there.
help please as would like to ride it before the summmer end been told to try coca cola or vineger in the carb,wot do you guys think.

[Suzuki mad]

Have you checked that you haven't had a spark plug go down? You tried that!

Is the one not firing wet or dry?

[gshub]

all 4 plug are black but dry and we tried 3 differant new sets and changed them round m8

[hampshirehog]

Try tapping the float bowl on number 2 Steve - float might be stuck. If that doesn't work you're going to have to pull the carbs and give them a thorough seeing to.

Coke and vinegar are old wive's tales by the way.

[tkent02]

been told to try coca cola or vineger in the carb,wot do you guys think.

I think it would run better on petrol.

[hampshirehog]

I think it would run better on petrol.

I'm impressed - didn't think you guys knew what petrol was. Though you seem to be able to get your bikes to run on stuff that we pull out of the North Sea and burn on a cooking hob (gas).

[Flyboy]

as we have checked jets sprayed no end of carb cleaner in there.

And there lies the problem, sorry to be the bearer of bad tidings, but squirting magic juice in there, in any quantities just ain't going to do it.
You need to pull the crbs off, strip, dip and clean properly, there is really no short cut, plain and simple.
There is a full write up and picutre, step by step tutorial on Basscliff's site.
Replace all the O-Rings from Robert Barr here on the forum, www.cycleorings.com and don't bother with the overpriced carb kits from the vendors, and don't forget the O-Pings between the carb rubbers and the head.

[gshub]

I think it would run better on petrol.

yer but you pay £1.38 ltr for the crap fuel we get here these day (wink)

[Big T]

You are suffering from several problems:

1. Your friends are bonkers and know nothing about carburettors
1a. You are listening to them
2. You need a full cleaning as noted above -pilot jets are probably clogged
3. If your bike has BS series carbs, the petcock may be leaking fuel into the carb and motor. Is your oil overfilled? Does it smell of gas?

All of these issues com up repeatedly here

[gshub]

You are suffering from several problems:

1. Your friends are bonkers and know nothing about carburettors
1a. You are listening to them
2. You need a full cleaning as noted above -pilot jets are probably clogged
3. If your bike has BS series carbs, the petcock may be leaking fuel into the carb and motor. Is your oil overfilled? Does it smell of gas?

All of these issues com up repeatedly here

fuel tap is a pingel ,carbs are vm28s and no theres no smell of petrol in the oil.
my source of imfo come from suzuki owners club Tec officer who knows more about suzukis
most of us will never even think about knowing.
next please.

[Big T]

fuel tap is a pingel ,carbs are vm28s and no theres no smell of petrol in the oil.
my source of imfo come from suzuki owners club Tec officer who knows more about suzukis
most of us will never even think about knowing.
next please.

Does he drink petrol when he's thirsty?

I don't know how it is in Merry Olde, but here in the States we put sugar in the gas tank to clog up the fuel system as vandalism. Sugar water isn't any different

If he's referring to the mild acidic content of Coke, which is shared by vinegar, that has zero effect on petrol residue. It will remove any rust you might have in there if you leave it in for a couple of days.

If he's that smart, he would have told you what we told you - strip and clean your carbs

[gshub]

got told another one earlier lemmon juice,but think best way is a strip down and a good
dunk in me m8s sonic cleaner maybe better idea.
Thanks
steve

[BassCliff]

Hi,

To continue the process of elimination;

Are you getting good spark in all four cylinders? Installing new plug caps can help ensure a healthy spark. Which cylinder is not firing?


Let me make sure I'm all caught up.

1. You've tested for good compression on all four.

2. Ensure you are getting good spark on all four. If so...

3. It must be fuel related. Everything starts with clean carbs. Usually you just have to completely disassemble them, then dip the carb bodies and all the metal bit in parts cleaner for up to 24 hours. Then squirt a little carb cleaner through all the passages followed by compressed air. This will ensure all of the internal carb passages are clear.

I've even heard of the main jets vibrating out and sitting in the bottom of the float bowl. The carb doesn't work too well when that happens. You just don't know until you've taken them all apart for a good cleaning and inspection. Have you replaced all the rubber O-rings and pilot jet plugs in your carbs? The original 30 year old rubber will decompose after time.

Yes, a sonic cleaner is a good idea. Make sure all of the screws, jets, needles, and other miscellaneous bits are removed from the carbs.


Thank you for your indulgence,

BassCliff

[hampshirehog]

Steve, lemon juice is slow, sticky and messy.

The best way we can clean them over here is to soak in cellulose thinners for a few hours (all rubber / plastic parts removed) and then boil in a saucepan with a single drop of Fairy Liquid in the water (no more than a drop or it'll end up all over the kitchen floor). You only need to boil for a few minutes.

Note: wife has to be out shopping for this to be safe (and never use the pan for cooking again unless you like the taste of petrol).

Sonic cleaners are good but have their limitations - a recent thread:

http://www.thegsresources.com/_forum/showthread.php?t=175725

[BassCliff]

Hi,

... and then boil in a saucepan with a single drop of Fairy Liquid in the water (no more than a drop or it'll end up all over the kitchen floor).

Ha! I had to look that up to see if you were serious. I learned that Fairy Liquid is a brand of liquid dish soap there in the UK.


Thank you for your indulgence,

BassCliff