• 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.

not firing on 1 &4 :(

  • Thread starter Thread starter ddz
  • Start date Start date
D

ddz

Guest
hi guys :cry:
Beautiful day here , changed the oil & fired her up . Was running great , then 2 cylenders stopped firing .I believe (from reading on the post) that 1 & 4 run off the same coil & 2 & 3 run off the other ,correct?I switched the wires to the plugs not firing(1&4) & they fired when switched. So i MUST order new coils?Is there any other checks i can do with the volt meter(not that i know how to use it ) to be certain its not anything else(ignighter box, pickups ) or anything else?
thanks guys (im awaiting a responce with credit card in hand :roll: )
Vinny
 
What bike is it?
If you have an ohm meter (multi meter) you can check the ohms out. With the caps off. If you have the newer electronic ignition, ohms should be ~3 ohms. I you have the older breaker points system, they should be ~5 ohms.

I'd check that first. If that checks out, put the caps back on, maybe trim 1/4" or so off the plug wires, then check thru the caps. Or you can check each cap by itself also.

Since I'm not sure what bike you have, I'll tell ya what I had. My caps are 5K ohm caps. So I checked each cap for that resistance. I actually had a bad cap.

If this all checks out, then the sure fire method is laying a plug on the engine and cranking it over and looking for that nice fat blue spark.

If this all fails, then a new coil is in order. However, again - depends on your bike. If you use the 3 ohm coils, search e-bay for newer Kat or Bandit coils.

Good Luck.
 
still no good

still no good

ok my caps were no good . I bought new ones locally & had the coil checked at the same place & the caps tested no good but the coil is strong . Yet i still have no spark on 1 & 4 :oops: ! Whats next pulse generator?Can someone walk me through testing (if you can) the signal generator. I have a digital volt meter but accept for checking batt. &charging i dont know how to use it '
I have a bad feeling this is gonna cost$$$
Thanks
Vinny
 
spark

spark

Before you start freaking out back track the harness from the coil and look for loose or corroded connections and also check for a 12v supply to the coils if all is ok then you can freak out freely
 
If we knew what bike you have we might be able to suggest a solution that is only $ rather than $$$. That's assuming that this is a freakable situation.
 
Vinny, find out what it is first. Then if it turns out to be coils
it will cost you nothing. Because if it is the coils I got you covered :)

That is if it is the GS1000 right?
 
sorry guys the bike is a 1980gs1000g.im also looking up in the clymers book .Looks like its time to learn how to use this volt meter!what is R1 scale?im guessing the headphone looking sign is ohms. By the headphone sign it goes from 200 ,2000 20k 200k 20m.I need 290-360 ohms to check the signal generator,so i guesss set the meter to 2000?Man i need some help!ITS TOO NICE OUT TO BE BROKE DOWN :oops:

ummm i just checked the new plug caps & they say 5k(with the headphone sign) am i supposed to have 3 ohm caps & would it matter?
Also thanks hoomie but the coil tested STRONG . the guy at the shop had a coil testing tool (cool stuff) & we saw the spark it gave ..REAL STRONG! This is ticken me off since i bought a trailer for the bike to tow it to the PA run :oops:
 
Man, I had the same problem. I didn't trim the wires and I don't think I was making good contact.
What I did was trim the wires for a fresh start. I then took a screw of similar diameter and pressed in the middle of the copper wires to make sure the caps had a good start to screw into and that it was making contact.
2nd time was a charm, and I'm happy to say that I almost (inadvertantly) popped a damn wheelie after work. 8O Damn traffic.

Meaning, my bike is still running strong.


I ended up doing the plug on the block check. It took a few tries. Check it out again before spending tons of money. :wink: 8)

Check the simple stuff first. If you had bad plug caps, then I doubt you have other problems.
 
ddz said:
sorry guys the bike is a 1980gs1000g.im also looking up in the clymers book .Looks like its time to learn how to use this volt meter!what is R1 scale?im guessing the headphone looking sign is ohms. By the headphone sign it goes from 200 ,2000 20k 200k 20m.I need 290-360 ohms to check the signal generator,so i guesss set the meter to 2000?Man i need some help!ITS TOO NICE OUT TO BE BROKE DOWN :oops:
Click to expand...

Yeah, that's the ohm scale. If you need 290 to 360 ohms, and NOT Kohms, then set it to the 2000 range. That's the best option you have.

Check the resistance thru your caps again. Not sure what the cap resistance is. However, from your bike, I'm ASSUMING you have 5 ohm coils. I can't guess what the caps are. But lets assume they are the same 5K ohm as mine.
So, you have 5 OHMS in the coil, AND you have 5K OHMS thru each cap, you should be able to test the ohms thru the 2 caps. Unless my math is wrong, you should have in the vicinity of 10K 5 Ohms (10,005). If you put your meter on the 20K range and check, if it doesn't show ANYTHING, then caps are not making contact.
If you get CLOSE to 10k 5ohms, then check you 12v to the coils and I have to bow out after that.

Good Luck. Don't sweat it. It's NOT going to be a big deal. :roll: :wink: 8)
 
There has to be a break in the feed or the ground then. That shouldn't be to hard to find unless it is buried in the harness. But it is usually an exposed wire that is the culprit. Or a corroded contact.
 
Thanks dmplatt i'll cut them back tomorrow & HOPE im as lucky as you were!
 
Lets start From what I have read # 1&4 do not spark
# 2&3 do spark OK DIsconnect the coil wires & measuer them for voltage, with the ign ON you should have 12 vdc on the coil power feed wire the other ign wire will have no voltage it goes back to the ignitor box. swap the two ign wires( white/black? &yel/black?) side to side. IT WIIL NOT RUN Ignitor circuit for 2&3 should fire the 1&4 coil
The 2&3 ign circuit would fire 1&4 . IF the 2&3 circuit is now not firing
the most likley problem is a bad ignitor
 
looks like the igniter

looks like the igniter

ok looks like the igniter is no good :cry: Can i use a dyna 3 ign? It looks like it comes with the igniter & pulse generator & its only$212.Compared to almost $400 for a stock igniter :roll: The man part# isD351 on the d/k site
Thanks for all the help evryone !!!!!!!
vinny
 
I agree with Lynn's assessment. You should be able to replace the ignitor / signal generator with either a Dyna3 or a Dyna S. You may want to call the people at dyna to confirm that you're getting the right part.

BTW, the Dyna S #DS3-2 is available from a number of retailers (APE [www.gszone.biz], star racing [www.starracing.com]) for much less than what dyna asks for them - $132 at star racing for example. You may also be able to get it from orient express (walk-in) in freeport, NY but I don't know how their prices are.
 
scotty said:
watch out guys. Platt is getting sharp with bikes. :D
Click to expand...

Nah, I'm still as dumb as ever. :lol: :lol:

Surely learning though.

I'm thinking by this summer I'll be able to change my oil. :lol: :lol: 8) 8)
 
DMPLATT said:
scotty said:
watch out guys. Platt is getting sharp with bikes. :D
Click to expand...

Nah, I'm still as dumb as ever. :lol: :lol:

Surely learning though.

I'm thinking by this summer I'll be able to change my oil. :lol: :lol: 8) 8)
Click to expand...

You and me both Dave. We are refining the art of looking up threads that have the needed information in them. That's GSR savy, not GS savy I am afraid :lol:

But hey, it helps sometimes! :D
 
MAn you people are the best!!!!!!!Mr jiggles i called orient express & they stock the dyna3 like you said for $170.I'll be going there tomorrow after work.
Thanks again for all the input i'll keep you all posted 8)
 
Rock on! This web site has saved my butt more than once as far as motorcycle repairs go ddz. Glad to hear it is worked out! :D
 
You must log in or register to reply here.
Back
Top