Mikuni SBN38/44 Pulse Cover

Mikuni Part#:  999-642-002-1A

Pulse covers need to have a perfect seal in order to perform correctly.  It is common too see the raised casting edge get worn down because someone used an abrasive to clean the pulse gasket off.  

Perform a leak down test when reinstalling pulse cover.  It should hold 5psi for at least 10 seconds.