so externally the same just internals is the difference then , so which ones had the idle adjustment cap ? as seems both did .
apart from part numbers how to tell ? or is it just the jet tubes ...... one with one without .
i have both here but hard to take a photo of the jet tubed g4 !
onya blumby only things i have in my book is they are different but doesnt really explain it .
there was a place here that it was explained im sure but i dont know how to link
mr davis and your good self i think went through this some time ago and hard to find it now
. Dave
