Plastic plug that fits in the top of the "towers" of Dellorto DHLA's equipped with mixture screws with "internal" thread.
Are you tired of, undoubtedly well-willing, mechanics that "accidentally" mess up your finely tuned DHLA's while only wanting to "adjust your idle speed"?
Are your DHLA's exposed to a lot of dust, dirt and moisture?
AND are your DHLA's equipped with the infamous "towers" (see photos)?
Then you should fit these tamper-proof plugs.
They fit in the top of the "tower" and prevent the ingress of dust, water and unwanted screwdrivers...
Required quantity per carburetor: 2
This item is NOT in the drawing.
Part Number: 10358