I hear there may be a “glued-on” effect after 34 years? I picked up the correct rated 3/8” feed, 5/8” vent, and 1-1/2” fill hoses (MPI) and new clamps to replace my 1992 dated hoses. I don’t anticipate much of an issue on either smaller lines but I want to prepare myself for the new fuel fill line. Any tips on removing the 1-1/2” hose from the tank particularly? I may delay this one until I have less fuel (wish I had done this when bad gas was pumped out last fall prior to filling). Batteries are still removed. Thanks guys.

Very sharp razor and cut through just hose around the barb
I have used a blunt pick bent at 90 to lift edges het hose moving

I just replaced some that were 25 years old. three pulled right off as the hose was hard and shrunk. one twist and off they came. the last one fought for a while and was in a hard place to reach. had to slice it as much as I could then I use a cotter pin puller (large sized hook) and got up under it and pried it loose. I have two different pullers and I use them all the time for getting radiator hoses and the like loose.

I generally do like compedgemarine with a cotter pin puller or more often rad hose picks depending on how crammed the location is for access. The picks have a longer point and there is a different model/bend pattern to suit wherever you have to get the pick into to fit... they also a great for chasing the barb if the hose tips under (vs going smoothly over the entire perimeter of the barb to push on).

Just make sure you double hose clamp and that they are actually full stainless - more often than not the bands are a good stainless with a cheap carbon screw that rots away in no time