Hi ed, I have but it really doesn't match with anything I've seen actual vin shows 12/81 and below the actual vin # in brackets (KZ250M).
Haven't seen any such denoations in any printed material tet that indicate a 250M?
Just finished checking coil, primary side 3.5 ohm, secondary side 11.6 k ohm. Gettin 11.6 volts to primary side when ignition on, even using just soark plug wire with olug sticknin ut or just coil wire held against motor still no fire whrn cranking. However I tried continuity of spark plug cap as well as resistance nuttin on either score. But still should see spark from plug wire utself bare wire held close to motor but still nuttin.
I replace the pickup coil witb a replacenwnt local bike shop sold me evrn check residtsnce of that and gettin something like 500ohm, old one 0 ohms so dunno yet stumped.