Aprilia RS 125 | Dellorto PHBH28 Carburettor Basics Explained Part 1 - Clean and Assembly.
Hi and thank you for watching my channel, Tom Did It. This video is Part 1 of a 2 Part series where I service, clean, reassemble and tune the Dellorto PHBH28 carburettor. This Dellorto PHBH28 carburettor comes standard on the later models of Aprilia RS 125 2 stroke. In this video I clean and reassemble the Dellorto PHBH28 carburettor and share my basic understanding on how it works. My jetting setup is as follows: Main Jet 125. Pilot Jet 60. Emulsion Tube B40. Needle X2. Choke jet 70. Mixer Tube BN266. Float Needle 250. Fuel Screw 2.5 turns out (approximately) Thanks for watching!
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