1989 -1991 Yamaha Enticer II LT 400 ET400 Piston Rings by Race-Driven
1989 -1991 Yamaha Enticer II LT 400 ET400 Piston Rings by Race-Driven. Brand New Race-Driven Piston Rings. You will receive 1 pair of piston rings to fit the following model: 1989 1990 1991 Yamaha Enticer II LT 400 ET400. Race-driven piston rings are designed to be a direct replacement for factory style rings which closely match the original equipment. Rings may not work on other aftermarket pistons. Race-Driven recommends the following preliminary work to be performed by a qualified mechanic prior to installing new pistons. If the old piston has failed, determine the cause and remedy the problem before replacing. Air leaks and/or a lean fuel mixture are the two biggest causes of burned pistons. In cases where any part of the old piston is broken or burned through, the crankcase should be disassembled and thoroughly flushed of any debris. While we aim to supply accurate product information, it is sourced by manufacturers, suppliers and marketplace sellers, and has not been provided by Overstock.