Help please Engine Identify

[CardboardDave]

Hi new to the site
I have a tdr 1996 and would love some info on the engine as from what i can tell there are many varients.

The barrel has YZ or Y2 stamped on it and if fitted with a manual power valve.









Thank you
Davy

[CardboardDave]

Engine number
3BN03 Y-1

Cylinder Number
4FU00 124cm3

Cylinder Head Number
4FU Y-2

Frame/Vin Number
4GW-0007**
Deltabox

1996 decared DVLA

Is my bike japanese?
Parts are hard to find in the uk
What other bikes have the same setup?

Thank you guys

Many thanks