LT EVO BVF 21N1 recirculation screw

BVF 21N1 recirculation screw LT - suitable for BVF21N1 carburetor - modified version of the air recirculation screw - diameter at the top = 1.8mm - allows the adjustment of the idle air mixture without the use of tools (no screwdriver required) - High-quality and durable material - with BVF carburetors, the adjustment of the idle-air mixture is only possible with a screwdriver, which is particularly problematic with the KR and SR models. - This recirculation screw allows the idle air mixture to be adjusted from the outside without a screwdriver. - Ideal in conjunction with the reinforced LT BVF idle screw ATTENTION: A different recirculation screw may fit under certain circumstances for non-LT carburettors of the type BVF. We recommend measuring the standard air recirculation screw at the tip and then choosing the right replacement. - 16N1 - 2.3mm diameter at the tip of the recirculation screw - 21N1 - 1.8mm diameter at the tip of the recirculation screw