81 CB 750C No Spark

I have an 81 cb 750c dohc and i am not getting any spark to the plugs,
could anyone tell me how to find out why i am not getting spark to the
plugs not sure how to troubleshoot...
Thanks,Larry

 

I have an 81 cb 750c dohc and i am not getting any spark to the plugs,

There could be a few reasons why you aren't getting spark to the spark
plugs....one could be the ignition modules are shot....look under the seat
above the battery, you will see a pair of ignition modules... inspect them
to see that they haven't "melted" on the side where the wires look like
the've been coated...If it looks funky, replace them. I had that problem on
my bike (among a boatload of other problems). It might also be whats wrong
with yours...
Other reasons could be the spark unit is shot....could have broken or
shorted high tension wires, a faulty A.C. generator, faulty ignition switch,
or faulty puilser generator... even bad or fouled spark plugs (which I
highly doubt).

Good Luck... let us know how you make out...

Fwed

 

Larry,

I used to have a '91 CB750 (Nighthawk)- although it is a different bike
than yours in many different ways, I know that there were many
knowledgeable people over in the Yahoo group. You can find it at
http://autos.groups.yahoo.com/group/cb-750/

Erik