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Triumph TR6 - Flooding SUs

My SUs flood after shut down when warm. I've rebuilt them, twice replaced the needle and seats, lowered the floats until I run out of gas above 4500 rpm. All to no avail. It's time to switch, but I dont want to go with side draft Webbers. Anyone have any good reccomendations?
Joe Justice

Two things: has fuel pump switched off? could fuel be siphoning out of float chamber down the overflow pipes?
The latter could dump a float chamber of fuel on the tarmac and the "leak" would not restart until the fuel pump was reactivated(hence apparent need for warm engine?)
Peter Cobbold

This thread was discussed on 14/02/2001

Triumph TR6 index