• 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.

Premature sparkplug death: Odd

  • Thread starter Thread starter ty998
  • Start date Start date
T

ty998

Guest
Bike '81 GS 650 G

Started bike and it sounded odd. After a quick inspection one of the cylinders was not firing. After another quick test I found that the sparkplug in cylinder 4 was not sparking and any other plug sparks connected to #4 boot. This was a new (3 months old) NGK spark plug. Is this of any particular concern or do plugs randomly do this? Plug looked good and gapped correctly.

:confused:
 
If other spark plugs didn't fire on the same plug wire, it's probably not the plug, but the cap, wire, or coil.
Try this, unscrew the cap off, cut a section off the end of the wire, about 3/8" and screw the cap back on after cleaning the inside of the cap as to have a good conductive surface free from dirt, adhesive, grease, etc.
 
He said other spark plugs spark on that wire.



Once I dropped an NGK spark plug it hit concrete but appeared completely undamaged (actually it was still in the package). I adjusted the gap and installed it. That exact plug failed within a few weeks. Just as you describe no spark at all...coincidence? Might be what happened to you. Even if you didn't drop it unfortunately it would be hard to prove a shop did and most shops aren't going to replace it.

I wouldn't worry too much and just replace it.
 
Just to be clear, no spark from any plug in the #4 position?
 
No. The OP said no spark from that plug, but other plugs on that lead sparked.
 
ty998 said:
After a quick inspection one of the cylinders was not firing. After another quick test I found that the sparkplug in cylinder 4 was not sparking and any other plug sparks connected to #4 boot.
Click to expand...
You need to clarify what you are attempting to convey.
 
ty998 said:
Bike '81 GS 650 G

Started bike and it sounded odd. After a quick inspection one of the cylinders was not firing. After another quick test I found that the sparkplug in cylinder 4 was not sparking and any other plug sparks connected to #4 boot. This was a new (3 months old) NGK spark plug. Is this of any particular concern or do plugs randomly do this? Plug looked good and gapped correctly.

:confused:
Click to expand...
Does the original plug spark when installed in another boot?
 
ty998 said:
After another quick test I found that the sparkplug in cylinder 4 was not sparking and any other plug sparks connected to #4 boot.
Click to expand...

Any other plug plugged into 4 will spark. Right? Seems pretty clear to me. :-s
 
Let me clarify:

-The spark plug in #4 boot was not sparking.
-Other plugs connected to #4 boot sparked.
Hence the SP was the problem.

I was wondering if this was due to a larger problem or just the plug.
From 'Razor02097's respone it seems this has happened with other plugs and is not a system problem, but simply a defective plug.

Just odd having a plug quit so early. I have never seen that before.
 
I had a brand new plug, straight from packaging, give up the ghost within a week. Odd, but not unheard of.
 
ty998 said:
Let me clarify:

-The spark plug in #4 boot was not sparking.
-Other plugs connected to #4 boot sparked.
Hence the SP was the problem.

I was wondering if this was due to a larger problem or just the plug.
From 'Razor02097's respone it seems this has happened with other plugs and is not a system problem, but simply a defective plug.

Just odd having a plug quit so early. I have never seen that before.
Click to expand...

I have had a few plugs that were faulty right out of the box and others that went bad in a few days, so getting a bad one isn't unheard of.
 
You must log in or register to reply here.
Back
Top