Unfortunately for my 1985 cr500r it is a little long but I will try and see if it will work as a replacement because I can't find one for my year.Made well, much like the original Honda CBR 500 R HONDA NEW GENUINE OEM CARBURETOR INSULATOR 1989-2001 CR500R New Honda Cr 250 2001 Manufacturer Part Number: 16221-ML3-681, Universal Fitment: No, UPC: Does not apply New GENUINE HONDA OEM CARBURETOR INSULATOR 1989-2001 CR500R New 16221-ML3-681 | Vehicle Parts & Accessories, Motorcycle & Scooter Parts & Accessories, Air Intake & Fuel Delivery Neu, Brand: Honda, Type: INTAKE MANIFOLD