On most motorcycles, there is a small plastic knob (sometimes metal) near the carburetor. I have a 1986 Honda Shadow VT700C and the idle adjustment is a white screw knob just next to the air intake on the left side. If you tighten this knob (or turn it clockwise) it will increase the idle. If you loosen it or turn it counter clockwise, you will lower the idle. On my motorcycle I try to keep the RPM just below 1000.
The way the idle adjustment works is as follows. When you let go of the throttle on the motorcycle, the throttle resets to its idle position. This is most often a pin that the throttle rests on. Screwing this pin in further causes the idle to rest at a higher position, and thus a higher RPM and vice versa.
A word of warning though, if your bike is having engine trouble and doesn't want to keep running in idle, don't just adjust the idle position. Check to make sure you don't have any other more serious problems with your motorcycle.
I've also included a link to a picture of what the assembly looks like. (picture from a Honda rebel)
Round plastic knob right below air-cleaner.
No
Idle on a 1985 Honda Civic is adjusted through a idle air control valve. This valve is located near the intake. Adjust the valve by either loosen or tightening it.
To adjust the idle on a 2005 Honda Civic locate the idle control valve. The IACV and is found near the intake manifold. Open the top of the valve and tighten it to lower the idle or loosen it to raise it.
If you are not able to adjust it down with the idle adjust knob you may have an airleak at the carb.
Honda Accord 1998-2002 model GEN 6 idle speed is control by internal computer. You need to bring it to the dealer to adjust this.
1000 RPM
twist the screw under the carb
i need to know how to adjust the valves on my vt750
Go to the mechanic down the blocc
It should be on the carb!
The idle speed on a 1996 Honda Civic is adjusted using an IACV. The IACV, or idle air control valve, lowers and raises the idle by either being tighten or loosen.