Cometic GM BBC 1.850 inch X 1.900 inch Port .30 inch MLS Exhaust Gasket 1986-yamaha-yz250-esi3878648 Wiseco knows top end bearings

Wiseco knows top end bearings are crucial to your top end rebuild

Eliminates backpressure

2005-2024 Yamaha YZ125 Base 2020-2024 Yamaha YZ125X Base

How It Works -The Throttle Control Module processes input data from the gas pedal

Cometic GM BBC 1.850 inch X 1.900 inch Port .30 inch MLS Exhaust Gasket 1986-yamaha-yz250-esi3878648 Wiseco knows top end bearingsCOMETIC MLS (Multi Layer Steel) Exhaust Gaskets are designed for extreme cylinder pressures. MLS Exhaust Manifold Gaskets maintain a torque set and resist corrosion. They will not burn through or push out. MLS Exhaust Manifold Gaskets withstand different combinations of cylinder head and exhaust manifold materials. No sealants are required. This exhaust gasket features 1. 850" x 1. 900" Port. This Part Fits: Year Make Model Submodel 1965 1975