Who doesn't know that rough engine idling is usually due to an old, hardened or brittle intake manifold.
APPLICATIONS OF THIS PRODUCT: According to the data provided by the manufacturer, this article is compatible with the following brands, models and years: Yamaha XJ 550 50 CV, 37 kw 4cil. 4V8 27A Bastidores: 4V8-300101-4V8-400000 1983-1984 Yamaha XJ 550 50 CV, 37 kw 4cil. 4V8 4V9 Bastidores: 4V8-100101-4V8-200000 1981-1982