OK 1000 hr maintenance! two engines.
Did this few weeks ago. Just getting to post.
Calls for Replace High Pressure fuel filter but I also wanted to replace the screen filter in the VST.
Also replace Low Pressure filter and other standard maintenance.
LP filter is a no brainer. I always have a spare o-ring for the cup but did not need it. Filter was clean but discolored. there was no water or particulate matter in the cup.
I loosened the VST and THOUGHT I could get away with not removing it entirely. Drained VST. NO water. NO junk. Screen filter discolored but it looks worse in the picture than in reality. mesh was clean.
No evidence of water ever touching the aluminum inside the tank. Beautiful!
replaced little screen on bottom of pump and new gasket and tried to put it back together
That didn't work out. The pump will "fall down" when you try to reassemble.
I found that out the hard way when the motor would not start.
Pulled the VST
entirely off. Pump was not seated in "grommet" so not pumping anywhere...

Notice there is a formed rubber seal on bottom of pump that hold the filter screen. This matches the form of the metal bottom of tank.
There is no wiggle. you have to place it oriented in the exact right direction. You have to do this on a bench.
In pix, the grommet wants too stay stuck on the pump but to get it all oriented you need to put the grommet in the top part and press the top down onto the already properly seated pump...while NOT screwing up the gasket...
Anyways got that motor running. Still had not changed the HP filter. I had ordered "cheap" filters because OEM zuke were $102 a piece.
I did not use the cheap ones. They were ....cheap.... left the originals on and got it ready to launch.
given that the VST was so clean, I am delaying that until the end of season wrap up.

The left one is OEM the right one is Amazon. Non stainless bolt, cheap construction, different angles of ports
As a stand alone project, the HP filter requires draining the VST to relieve fuel pressure and you NEED a fuel hose plier kit. It could be done by loosening, but without removing ,the VST.
But its tight space and short hoses....
This project required me to buy a (cheap) hose clamp kit. Some of the original clips came off easy and went back. Others were destroyed by pliers and could not be reused.
You will need this to do the VST and HP filter change.
So final recommendation is to have everything ready before you start. Have the OEM suzuki gaskets, filters, screens. Have a hose clamp kit. Remove the VST to do the work and replace the HP filters as part of that process. Do one motor at a time and test the motor before moving on to the next. I would suggest this as a END of season project, not a "I need to launch in 3 days" project.