aum head on my engine i am sure

[(shakey)]

i thought at first it had a new engine but was told on here that it is an agu because it has a throttle cable,
but where the agu stamp is it has been grined off u can just make out a potted line that looks like an M and the head looks different to my brothers agu,how can i tell or find out if it has and if so what differance wud it make.

[Ashmond]

there is no difference in the head I dont think. I know the AGU's have a large port on the intake but that is the only difference, you'l get a cam counter on your aum head whereas the agu one doesnt