Honda Carbon Fiber XR650R Engine Cover for years 2000 2007MDI Carbon Fiber Engine Cover Set for Honda XR650R. All our carbon fiber Engine Cover Set are made with an Autoclave process, which uses the highest quality TORAYCA PREPREG carbon fiber fabric from Japan. More information on the manufacturers specifications: Finishes and Materials! Cures at 400 degrees and a pressure of 5Kg cm. One of the most advanced techniques for making composite components is by using PrePreg carbon fiber reinforcement, cured