This Lucas type horn button and hi / low switch replaces the stock one found on your Triumph

Fits 1970-Early 1984 Harley-Davidson Big Twin kick start/electric start models

Standard Valving - Unless you are running RaceTech Gold Valves or similar emulators

chopper or race-inspired performance machine

Installation Notes

No. 56 Intake Leak Tester - 4 Bolt Style Subcategory_Hose Clamps This Lucas type horn buttonFast Eddy Co.'s Intake Test Plates are a great way to make sure you don't have any intake leak issues, and they also help you diagnose other problems that might be robbing you of performance. Easy to use just bolt the test plate to your intake manifold, collapse the intake pushrods, and use a mighty vac style hand pump to see if the system holds vacuum. If the system doesn't hold 10 inHG for 10 seconds or longer you have a leak that you need to deal