The latest upgrade for 900 Series Mark 1 Concentric Carburetors from the Amal Carburetor Company are precision made forged aluminum throttle slides with a high quality hard anodised surface finish that offers superb resistance to wear and smoother throttle operation

The CE-8188 will fit as stock replacement on 1981 - 1988 Harley-Davidson Big Twin Models

These bolt from your motor to a stock tab on your frame

For motorcycles with two exhaust pipes & mufflers you will need two sets

and never have to worry about rust

#2216-18 Exhaust System Mounting Bolt Kit 1932-1973 Harley-Davidson 45's - Parkerized Vendor_James Gaskets The latest upgrade for 900Correct parkerized reproduction of fasteners used to mount exhaust system on 1932 1973 Harley Davidson Harley 45's. Bolts are machined plain head. Made in Ohio, USA.