Carburetor kits specially assembled for the RaceTour Lambretta cylinders. The carburettor kits are based on the Polini carburettors and our bgm PRO intake manifold. The manifold comes with a MB carburetor rubber and offers the maximum possible distance between the carburetor and the side cover. The carburettor is almost in the original position and straight. The original or bgm air filter box (BGM4488) can be used without any problems. The Polini carbs are also used for the Polini Thor engines for paragliders. Therefore every single carburettor including all components is tested on the flowbench by Polini. The carburettors can be tuned very well - just like the original Keihin PWK's - and convince with good consumption values.
A good starting jetting for the RT cylinders and the bgm Lambretta Big Box consists of a 45mm side jet, JJH needle on second clip from above and a 125 main jet.
Included in the delivery are the complete intake manifold, the Polini carburettor, a main and side jet set, the JJH needle, XL inner cable with additional screw nipple for the gazug roller. To keep the outer cover of the original throttle cable a 180° throttle cable guide is included. The conversion set for cable choke comes with the kit, as well as a solder nipple to adjust the choke cable to the correct size if necessary.
Hint: Please use cylinder hoods without Air Scoop or remove them from the hood.
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