• Required reading for all forum users!!!

    Welcome!
    Register to access the full functionality of the GSResources forum. Until you register and activate your account you will not have full forum access, nor will you be able to post or reply to messages.

    A note to new registrants...
    All new forum registrations must be activated via email before you have full access to the forum.

    A Special Note about Email accounts!
    DO NOT SIGN UP USING hotmail, outlook, gmx, sbcglobal, att, bellsouth or email.com. They delete our forum signup emails.

    A note to old forum members...
    I receive numerous requests from people who can no longer log in because their accounts were deleted. As mentioned in the forum FAQ, user accounts are deleted if you haven't logged in for the past 6 months. If you can't log in, then create a new forum account. If you don't get an error message, then check your email account for an activation message. If you get a message stating that the email address is already in use, then your account still exists so follow the instructions in the forum FAQ for resetting your password.

    Have you forgotten your password or have a new email address? Then read the forum FAQ for details on how to reset it.

    Any email requests for "can't log in anymore" problems or "lost my password" problems will be deleted. Read the forum FAQ and follow the instructions there - that's what we have one for...

  • Returning Visitors

    If you are a returning visitor who never received your confirmation email, then odds are your email provider is blockinig emails from our server. The only thing that can be done to get around this is you will have to try creating another forum account using an email address from another domain.

    If you are a returning visitor to the forum and can't log in using your old forum name and password but used to be able to then chances are your account is deleted. Purges of the databases are done regularly. You will have to create a new forum account and you should be all set.

odd happenings

  • Thread starter Thread starter warriormonk
  • Start date Start date
W

warriormonk

Guest
:?: Hi I have just completed the carb overhaul on my GS 850.Followed the instructions I downloaded from BikeCliffs website to the letter.New everything ie "0" rings,jets...etc.Worked a treat bike now runs and starts great.But on turning the ignition key off I get a cough from the exhaust??????:eek: any ideas please.

Regards Warriormonk
 
Have you done all the fine-tuning on the mixtures?

Have you adjusted the valves?

Have you done a vacuum sync?

.
 
Odd Happenings

Odd Happenings

:confused:All checks carried out by mechanic.I turn engine off with kill switch, if I then wait a minute or so then turn off the key it coughs from the exhaust.It runs a dream so can not be much.(famous last words):?:
 
Is this a breaker points ignition 850 or an electronic ignition 850?
Also I am curious why you would replace the jets, and what you replaced them with?
 
Odd happenings

Odd happenings

I was having trouble starting it and it ran like a sack of frogs.I read the forum that advises a total clean and replace of every thing.As the machine had stood a long time there was a bit of muck and one spring missing completely.I bought te byke to do up you understand.So thats the reason for the jets etc.Replaced with OEM stuff all Suzuki parts.
 
Odd Happenings

Odd Happenings

electronic ignition,yes to numbers
 
Odd Happenings

Odd Happenings

it was on this forum about 12months since
 
warriormonk said:
it was on this forum about 12months since
Click to expand...
This forum does not promote the changing of stock jetting, only with mods and then it is a jet kit. On a carb overhaul/ rebuild, it promotes a total strip and dip and replace the bowl gasket and o-rings, just clean your jets. The reason is jets don't go bad just get dirty. And after market ones don't tend to be the same. Also this sounds more like an electrical issue to me. My guess is a ignition switch, shorting inside.
 
Replacing the jets and needles is not needed as long as they are in good shape, (ie) no broken tips on the needles. If mods to exhaust or air intake (pods), then yes you may have to up the jet size. If not, then just a good dip and thorough cleaning with all new "O" rings should suffice.
 
To clarify-So if you first turn off with kill switch, engine dies, but then turning off ignition switch, engine fires briefly ?? Is the kill switch still in "OFF" spot when you turn off ignition switch?
 
If I understand it correctly, you get a pop through the exhaust after a minute or so of shutting down the engine. Does this always happen at the moment you turn the ignition key off or does it happen if you do nothing with the ignition key?

Another words either:

1) You shut the engine down from an idle using the switch on the handlebars. You then shut everything down using the ignition switch and as soon as you turn the key you get a pop through the exhaust.

or

2) You shut the engine off using the switch on the handlebar and then turn off the ignition. After a few seconds, you hear a pop through the exhaust.

Which one best describes your situation. If it's number 2 then you may have a rich idle with an air leak in the exhaust.

I've seen Mazda RX3's that did this if you depressed the accelerator peddle after engine shut down. This is kind of fun to play with. You turn the engine off, press the accelerator after then engine has stopped and then, after a few seconds, you get a loud bang in the exhaust. This happens usually in a long enough time that you’re already walking away from the car. Usually scares the pants off of anyone near the car when it goes off. Fuel gets dumped into the exhaust and the hot exhaust ignites the vaporized fuel once the correct amount of oxygen gets into the pipes.

Just a thought.
 
warriormonk said:
:confused:All checks carried out by mechanic.I turn engine off with kill switch, if I then wait a minute or so then turn off the key it coughs from the exhaust.It runs a dream so can not be much.(famous last words):?:
Click to expand...
Sounds to me like somehow the low tension side of the ignition is still getting current even with the kill switch and the ign key cuts the supply and triggers a spark. Are you on points?
Duh! Just seen you're electronic. I still reckon that a spark is being triggered.
 
Last edited:
warriormonk said:
:confused:All checks carried out by mechanic.I turn engine off with kill switch, if I then wait a minute or so then turn off the key it coughs from the exhaust.It runs a dream so can not be much.(famous last words):?:
Click to expand...


Aaah, all checks carried out by mechanic...so you weren't around when he did these checks?
 
Odd Happenings

Odd Happenings

:) Thanks so much for all the answers, First to Mrbill5491 Yes I watched everything the mech did its the way to learn! Second,JTGS850 and Tom, Number 1 is spot on,same with you Tom.now HABSDOC I must have misunderstood the instructions but with the new jets and everything it runs 100% better than it did so its not a problem. I hope these make sense to you all, once again thanks.
 
You must log in or register to reply here.
Back
Top