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GK76A No Spark

Posted: Sat Jul 07, 2012 5:31 pm
by shotti
Garaged it last night after a nice ride and went to get it out today no luck, pulled the plugs and it seems i have no spark at all on any cylinders :x . I dont have a multimeter and dont belive both coils decided to give up together.
The box on the left in the pic marked omron is getting pretty warm, what is it and could this be the problem? Im really scratching my head on this what should i be checking? And does anybody know if a manual is availabe anywhere for these bikes? Everything else seems to be working fine just wont start.

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Re: GK76A SP No Spark

Posted: Sun Jul 08, 2012 9:34 am
by ben2306
if it start up after awhile, inconsistent, check your pick up coil aka pulse coil. :peace:

Re: GK76A SP No Spark

Posted: Sun Jul 08, 2012 1:35 pm
by lizard821000
if it still fails to start, break the bike and sell me the forks :peace:

Re: GK76A SP No Spark

Posted: Sun Jul 08, 2012 3:19 pm
by shotti
ben2306 wrote:if it start up after awhile, inconsistent, check your pick up coil aka pulse coil. :peace:
do i have to change casing gasket for this? if so where can i find one, thanks

p.s buying a multimeter in the morning

Re: GK76A SP No Spark

Posted: Mon Jul 09, 2012 2:53 am
by ben2306
shotti wrote:
ben2306 wrote:if it start up after awhile, inconsistent, check your pick up coil aka pulse coil. :peace:
do i have to change casing gasket for this? if so where can i find one, thanks

p.s buying a multimeter in the morning
nope. its a small black box with 2 or 3 wires.

Re: GK76A SP No Spark

Posted: Mon Jul 09, 2012 10:31 am
by Jaicen
Do you have a picture of that?
I have an intermittent fault on my bike that's proving elusive to track down, so I might replace the pick up coil to eliminate that as a possibility.

Re: GK76A SP No Spark

Posted: Mon Jul 09, 2012 3:43 pm
by shotti
ok first of all thanks for your replys so far, just finished taking everthing back off and got my multimemer.

Both wires on both coils are showing 12.8v with the ignition on(not turning it over) the orange and white wires in the photo.

when turning the bike over and putting the meter on the end of the ht lead with the spark plug out i get nothing.

so i have power going to both coils but nothing getting to the plugs, anybody know how i can check the cdi is working? and all suggestions welcome ;)

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Re: GK76A SP No Spark

Posted: Mon Jul 09, 2012 7:41 pm
by Jaicen
You should measure the resistance of the coils using the ohms setting on your multimeter.
If you get about 3ohms, they're good. Any higher and they're breaking down, any lower and there's a short.

Re: GK76A SP No Spark

Posted: Mon Jul 09, 2012 8:50 pm
by shotti
Jaicen wrote:You should measure the resistance of the coils using the ohms setting on your multimeter.
If you get about 3ohms, they're good. Any higher and they're breaking down, any lower and there's a short.
ok thanks for your reply 4.2 from one coil 4.4 from the other, and 1.4 when touching together any of the 3 wires coming off the stator, im leaning towards the cdi and i dont know why :( help me people!!! :shock: p.s why dont they sell a haynes!!! >.<

Re: GK76A SP No Spark

Posted: Tue Jul 10, 2012 1:37 am
by ben2306
Jaicen wrote:Do you have a picture of that?
I have an intermittent fault on my bike that's proving elusive to track down, so I might replace the pick up coil to eliminate that as a possibility.
I dont have pic. I try to search online for you.