Old trick.
Get your length of flexible pipe, any diameter you want, I've done this with 1 1/4 ID pipe.
Tie a nut or bolt to the end of a piece of string and drop bolt and string into the pipe and out the other end. Remove the bolt and replace with a piece of rag, preferably soaked in the liquid you want to siphon to reduce friction.
Put the end of the pipe with the rag into the liquid reservoir then pull the string from the other end and the siphon will start.