Base Line Specifications

This base line range of carburettors offer a standard specification which provides approximate settings for each bore size within the 389 Monobloc series. Ideal for anyone who wants to tune their machine themselves.

Please note if you require a change of jetting to that which is listed for each carburettor, add this on the notes of your order & we will be happy to fit this for you. Alternatively any notes on your required application may also help.