In this paper, we present a series of enhancements to the English-Japanese version of a multilingual Linguistics Based Machine Translation system, for the translation of complex sentences, modality and complex verbal structures. The system is using a classical transfer-based architecture and dedicated lexical databases. Relying on linguistic data acquired on large corpora or compiled from the web, corrections have been done in constituent reordering, lexical selection and verb conjugation. Even if the system is not, so far, as efficient as state-of-the-art English-Japanese MT systems, the results show a clear progress and underline the interest of using syntactic information in MT.