Motorcycle Repair: No sparks in 2 & 3, coil windings, yellow lead

Question
Honda CB900FT

I haven't got power from the yellow lead to 1 & 4 coil, taking that yellow is possitive, have traced yellow through system and done tests from Haynes manual. Spark units work, connection in block clean and servicable...HELP!

Answer
Hi Glenn,

Follow the service manual's electrical testing procedures.

Test ignition coil windings and leads for continuity and Ohms.
Test ignition pick-up coil for continuity and Ohms.
Test ignitors with known good units.
Inspect plug leads for defects and test continuity.

Respectfully,
Mark Shively