Suzuki Intruder VS 1400 S83 Boulevard service manual. It is in English but has many images, and it is very simple to follow. It is used for all VS1400 models, which were manufactured from 1988 to 1993: vs 1400 GLJ; Vs 1400 GLFL/glP; Vs 1400 GLFM/LPG; Vs 1400 GLFN/LPG; VS1400 GLFP/LPG