I added a bottle of Techtron fuel injector cleaner last trip, and the fuel
pump started buzzing.  It gets louder when I slightly pinch the supply line.

My guess is that crud in the tank either blocked the in tank screen (which I
will test by pulling the supply and placing in a gas can).

Or the fuel filter is getting plugged.

Question, is it OK to install a different brand filter like one from a BMW
in place of the little square plastic filter I currently have on my 84
Westy?

I've seen kits available to convert hose sizes, but assume that any hose
adaptors from your FLAPS could work.

Thanks!

Jack R.

84 Westy Wolfie, with 2.1l - 4 Speed.

N. of Detroit