My 750 is fouling all 4 plugs,leaving a sooty residue on the plugs.since i havent messed with the carbs,im guessing its ignition related.ive tried testing the coils resistance per instructions i found on google.keep in mind im using coils off a early 80's kaw,i get 2.5 ohms of primary resistance but cant get anything on the secondary side which i find odd,i can only guess im doing something wrong but what,i have no idea.also,i cant seem to find specs and a testing procedure to test the plug caps.any ideas guys?thanks