Monday morning quiz. What is this bike?

[mikerust]

I don't know but I do have a clue?

 

[alrikki]

is it a 1983 suzuki gr650 Tempter?
or more likely this
2002 Suzuki ST400 Tempter Retro
http://www.flickr.com/photos/kenjonbro/3428849599/

 

[KZ]

Yep, probably a 400cc Suzuki if it's from Japan, the 650 version sold in the US as the "Savage" has a taller cylinder. Even the 650 is kind of weak, but has a long stroke and sounds like an old BSA with the right exhaust.