Too high idle – what to do?

[DK2600]

When the engine on my Yamaha XS 360, 1977 is hot the idle is to high – is like sitting on a ” swarm of bees” when cold choke is needed and the motorcycle start immediately and the choke is only needed for a very short time – should I use the throttle screw to adjust idle? – if YES should the throttle screw be turned clockwise or anticlockwise? – or is it something else that need adjustment? - I believe that engine must be hot before anything is adjusted, right?

Please let me have your experienced thoughts and guidance, thanks

 

[HoughMade]

Yes. Counterclockwise to lower idle. Clockwise to raise it. Adjust to 1200 rpm when it is fully warm. If it idles between 1200 and 1500, that's close enough in my book.

 

[DK2600]

Well, thanks, meanwhile I have been advised that the mix properly was to rich and I should adjust the Pilot Screw on the carburetor when the engine is hot – I did that and idle vent the a stable level (I don't have rpm clock on my motorcycle) anyway, now the motorcycle runs very well when it’s hot, but it’s very difficult to start when it’s cold. I really don’t know what to do – you advise will be highly appreciated, thanks