Polaris TX Starfire 648 Snowmobile (1972-1973)

The Polaris TX Starfire 648, often referred to as the 650cc model, was a high-performance, racing-oriented snowmobile offered by Polaris in 1972 and 1973. It featured a triple-cylinder, free-air Starflame Fuji engine with a displacement of 649cc. While precise horsepower figures are not consistently available, Polaris aimed for 160 horsepower per liter for its 1973 Starflame engines, suggesting around 104 horsepower for this model. The TX Starfire line was offered with various engine displacements, effectively serving as different trims, including the 650cc. The transition from 1972 to 1973 brought significant advancements. The 1973 model was completely redesigned for competition, being somewhat lighter and featuring an improved Starflame engine with larger fins, chrome bore cylinders, and a tougher crankshaft, along with CDI ignition. The chassis incorporated a jackshaft and Equaliberator suspension, a new hydraulic braking system, and enhanced track options. Q: How can I ensure this part fits my Polaris TX Starfire 648 snowmobile? R: To guarantee compatibility, please use our year and model selector at the top of the page.

Maintenance