Air and Idle Screws

This easy-adjust idle screw & air screw twin pack gives you total Keihin PWK carburettor adjustment at your fingertips without tools or even taking your gloves off.

CNC precision manufactured to the highest ISO 9001 standards in the UK by a highly qualified senior engineer using high grade aluminium.

They can be fitted in a few minutes using the standard springs, just apply a spot of copper grease on the threads & be careful not to lose the small washer & o-ring that go on the air screw between the spring & the carb.

We have found that some of the smaller PWK carbs (under 36mm) have the fuel inlet pipe in a different position which does not allow this idle screw to fit. These carbs also require a shorter air screw.

Please compare your carb to the one in the picture to check this before ordering. We have alternatives available, please email for details.

Available in polished alloy or a choice of 6 anodised colours to co-ordinate with your bike.

Please email me at or phone me on 07775 603320 if you require any more information.


Comments are closed.