been offered a 954 blade engine but it hasent got the hiss system do i need this or is there away round it?

http://www.locostbuilders.co.uk/viewthread.php?tid=49969

if the ecm part no,s are ......38770-MCJ-AO1 9706-110521 ........or this 38770-MCJ-LO1 9707-100208....... they are from an american bike ..if the part no is .........38770-MCJ-D01
9704-102303 ........it is from a uk bike which will have the honda hiss system.you can use the usa loom and ecu by using a resister on the ignition pink wire.
the uk ecm IMO cant be bypassed if you dont have the hiss system,Unless some one else out there knows different,if they do i would like to know.
fortunately my engine came with usa loom and ecm