Welcome to the site TimberFramer :cool:
As far as you Tamaha goes, I am betting it is a DT-1, which was a model designation throughout the 70's. Sounds like a fun bike. As Okie said, send us some photos and we will bet them up for people to help you identify the bike.
OK, I have to ask ... are you a timberframer? I'm an architect and am going to yse timberframe on my personal house that I will be starting next spring.
I didn't think to look ... have you updated your info? If not, do so and perhaps there is a member nearby.
Oops .. I see you are in NH. Check out the
Damn Yankee Dirt Riders forum for some folks in your area. One of the finest members on the site lives in the NW corner of RI. He is "old" enough :rotfl: to have probably ridden DT's as a kid ... :nod: