Coils

[Andrwbunker]

Ive got a 1982 GS850G. I just installed a Dyna S on it. I have spark at 3 of the 4 cylinders. #2 is not firing for some reason. I am trying to check the Coils of which are different on the bike to begin with. 1-4 Coil which both sparks has a primary resistance of 3.8. 2-3 Coil which I think is a problem has 4.0 resistance. 0.0 resistance on my multimeter leads. I cannot get anything to register for the secondary resistance on either of them.

Q - What am I doing wrong that I cannot get Secondary resistance readings?

Q- What are the primary's supposed to be? and can they be different?

Thank you for your input.

[SAN]

coils

Try www.gs-classic.de/index1e.htm follow instructions for english conversion, unless you read german. click bike models on top find your model click technical info i believe,you find loads of info, on your machine. or tipps etc. look around. good luck. SAN.

[renobruce]

Swap the spark plug wires on 2 and 3. If the problem moves to #3, you probably have a bad wire.

[Andrwbunker]

Coils

Ok- I found I can take the Spark Plug Caps off as well as the boots on top and bottom. I can now read secondary resistance by putting the multimeter directly on the wire itself. That means its not the wire. However - Has anyone dealt with faulty spark plug caps before?

Q- As far as the spark plug caps are concerned, Do you know if there should be any resistance between one end and the other. What about putting a multimeter on each end just to see if there is connectivity??

[SqDancerLynn1]

The plug caps are around 5K ohms, if on is bad Get the NGK replacements $3-$4 Oem are like $16 @

[Andrwbunker]

Ngk

I can only find a company that sells spark plugs and ox. sensors. Any ideas?

[Nessism]

http://www.z1enterprises.com/SearchResult.aspx?All=True&KeyWords=spark%20plug%20cap