...It is not recommended but with proper clamps it works fine. Most of the trouble I have seen results from an improperly sized or type clamp. I have an assortment of high pressure, stainless steel "through-bolt" type fuel injection clamps that I use when doing this and I have never had a problem. In the end it is nothing but a barbed hose fitting you are connecting to. Our Yanmar uses regular (although properly sized!) hose clamps on all the fuel lines right from the factory. Just be careful when cutting the fertile away not to damage the actual barb surface, that can stop you...
Bruce