Hallo i am new in the forum
My name is john

I have learned that, someone in GREECE has made it an electronic unit
for nsr 250 mc21 mc18r5k and name it (ΗRΜ Ι)normal 52HP (ΗRΜ ΙΙ)sp62HP (ΗRΜ III)TTF3 72HP
and shows this video https://www.youtube.com/watch?v=OwljPTM-awE&t=26s

and this is the advertising.

e.c.u. unit Only For
Honda nsr 250 mc21 for all models 1990-93. Honda nsr 250 mc18 r5k only.
It can be placed as the original.
It snaps into the connectors of the motorcycle without cutting the original cables.
Manufactured in three versions
ΗRΜ Ι Normal 52 HP
ΗRΜ ΙΙ SP62 HP
ΗRΜ III TT-F3 72 HP
The final tests of the ECU UNIT occurred with a motorcycle dynamometer with adjustable carburetors using unleaded gas 95 octane rating, 20 Celsius and 40% humidity.
The motorcycle that was used: NSR 250 mc21-mc18 as manufactured by Honda without adjustments to the exhaust system, kit, carburetor etc.
Tests showed great flexibility, from 1.500 RPM engine speed up to 13.000 RPM with better acceleration throttle from PGM-II/PGM-III
Technical Characteristics:
Operating voltage from 10 volts up to 21 volts.
Not destroyed as the PGM-II/PGM-III.
Not destroyed by a burnt regulator.
Manages the RC VALVE/TPS/ELECTRO VALVES CARBURATOR/OIL PUMP.

has anyone tried it this ECU to tell me if the works aright this unit ?