not returning to idle

[jacliny]

my engine seems to remain at high rpms for a quite few seconds before slowing down to an idle. all carb functions seem to check out, could it be an air leak between the carb and intake?

[MikeBike]

r u braking it in right now?

[jacliny]

yes i am just started it today. seems to be fine otherwise, but i had to make a new intake mainfold to clear the downtube, just hopeing my welds not leaking.

[MikeBike]

ok
so you welded the carb to the new intake, or your intake to you engine block? or both?

[jacliny]

lol, no just made a new manifold with a 45 deg bend in it

[MikeBike]

o ok, you no it just might be your carb leekin air, mine has a very high idle. but it just stays like that, i need to silicon it

[tyrslider]

Could be a sticky slide as well. But if its an air leak and you spray some wd-40 over where it's leakin the idle will change indicating the leak und vhere it is!

[jacliny]

yup, did just that, its not the manifold i made but where the carb attaches to it, i guess an o ring down in there might help, i dont want to goo it all up with silicon! lol, its a junky clamp arrangement!