Why does my Har­ley cut out when fuel’s low?

Q

Motorcycle News (UK) - - MCN Garage -

I have a prob­lem with my 2011 Har­ley-david­son FLD Switch­back. If I am low on fuel af­ter a brisk run and I am slow­ing down, say com­ing off a mo­tor­way, the en­gine cuts out when I pull the clutch in. Each time it cuts out re­peat­edly un­til I get to a petrol sta­tion. But if the fuel level is low and I’m tak­ing it easy there’s no prob­lem. Ge­orge Forth, Northaller­ton

An­swered by Andy ForbesBuck­ing­ham, AFB Mo­tor­cy­cles The fuel feed pipework in­side the tank looks like small cor­ru­gated vac­uum cleaner pipes. One comes out at quite an acute an­gle from the fuel fil­ter, which isn’t nor­mally a prob­lem, but if the tank is hot af­ter a run, it will soften and with­out the fuel to sup­port it, it can fold over on it­self and re­strict fuel flow sig­nif­i­cantly.

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