1973, right after I got my drivers license I bought a 1973 Yamaha RD350, I loved it, my parents hated it! Then in the following order.
1975 Honda XL250
1976 Yamaha XT500 thumper ( great bike)
1976 Yamaha Xs650
1978 Yamaha XS750 triple
Wife, kids, 20 year break.
Restored a 1977 BMW R100
Restored a 1976 Triumph Bonneville T140-D
Got my present day Triumph BA in 2008
Nothing puts an idiot grin on my face easier than going riding.

2007 TBA, see NEW! pics here http://s279.photobucket.com/albums/kk124/mailman3129/My%20summer%20project%202011/