How many digits in my 1984 honda magna vin #?

I went to get mike bike registered and the dmv tells me my vin# is wrong. Here is my dilemma:
There are 14 obvious digits in the vin and before it there are 3 lower case letters. I brought them all 17 digits because i thought i had to have 17. Is it possible i only need 14 digits for this bike?

The VIN (Vehicle Identification Number) stamped into the steering head on the bike's frame MUST match the VIN on the title to the bike. ANY motor vehicle manufactured for sale in the United States after 1981 should have a VIN with 17 characters.

Are you certain your bike is a 1984 model year?