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To title or register your motorcycle, visit an MVC Agency with proof of insurance, title and registration fee payment and one of the following:
Manufacturer's Certificate of Origin (MSO or MCO)
New Jersey or out-of-state title
Registration and a notarized bill-of-sale from the previous owner with vehicle description and sale price (motorcycles from non-titled states only)
If the manufacturer does not appear on the approved list, you must also provide:
A color photo of the NHTSA label
A color photo of the EPA Noise Emissions label**
A color photo of the EPA Exhaust Emissions label**
A color photo of the side of the motorcycle
Proof of insurance and pay the title and registration fee
If your motorcycle manufacturer is not included on the approved list [10k pdf], the dealer must contact MVC to apply for approval to license and register motorcycles in New Jersey .
If your motorcycle doesn't meet the minimum federal safety standards, you must contact the dealer or manufacturer.
NOTE: Dirt bikes can only be used on private property and cannot be titled or registered. Insurance is optional.
If you don't have an MCO or if the motorcycle has never been titled, you must complete the Application for Motorcycle or Moped Title
link below
http://www.state.nj.us/mvc/Vehicle/Motorcycles.htm