High rev-rev-reving

[scotty]

I've noticed something creeping up a bit recently and getting very noticeable now.

Once the engine's got up to temp I have noticed that the rev's are not dropping back down very quickly when I drop off the gas.
At first I thought my throttle cable might be stiff but it's fine at low temperatures.
When in traffic and I press in the clutch it races up a fair bit before gradually drops down to a slightly fast
idle.

I'm wondering if this is a bit of a timing issue but not sure where to start checking.

Hmmm?

[grubscrew]

Try at the engine end once warm, then that will eliminate whether it is the cable or otherwise.

[Mics126]

it sounds like the mixture is abit rich. first try to screw in the idle mixture screw.
hopefully that works.