No spark left bank

[brim_buster]

87 J90TLCUR lost spark to left side plugs. I doubt both coils went bad leaning towards the CDI. Gonna ohm test the coils. Any other thoughts? Fixing for a friend

 

[brim_buster]

meter set at 2k ohms I get 0 on the primary on both and .015 and .014 on second.

 

[saltchuckmatt]

Wire connections and grounds clean?

 

[brim_buster]

Wire connections and grounds clean?

yes and the cdi on the other bank has been replaced I see.

 

[racerone]

Put the CDI from working side on the non sparking side.----Observe the results

 

[F_R]

Possible internal wire break in wires from timer base/sensor assy, from flexing as throttle is moved.

 

[brim_buster]

Thanks folks... Now I have some options. Much appreciated.

 

[brim_buster]

swapped CDI box and boom got spark.