Could be a 6 I read it upside down and in the back corner of the garage that is packed with sleds from front to back.

The serial number is J44F6080094M

I h that purchased the sled newave a 78 Cyclone that was given to me by a coworker that he purchased from another coworker that purchased the sled new. The gas tank does not have storage compartment and the original owner is no longer in the area so I cannot contact him to see if the tank was change...

I am looking for an airbox, handle bar pad and recoil.

Could anyone tell me if they made a 1978 Cyclone without the storage compartment as part of the gas tank?