The first question is are you gutting it or leaving the guts in, which is personal preference and has been discussed on here hundreds of times.
But the reason I ask.... If your gutting it, don’t worry about trying to cycle the gas through. Cut the belt and start removing the motor, pumps, filters, etc. most of the gas will still be in the pump mechanism itself. When you remove it, just hold it upside down over a bucket, drain the gas and put it in the scrap pile. Repeat with all the other components (the motor obviously won’t have gas in it).
Now if your NOT gutting it, and are restoring the guts, do everything mentioned above, but go one step further and take apart the pump, the ‘metering pump’ and any filter canisters and clean them out. I actually gut the insides of those smaller individual components (the pump, metering pump, any filter canisters) to get rid of the gas/smell and then clean them and then put them back together without any internal parts.
And finally... If your just doing a cosmetic restoration on the external panels and leaving the pump outside for display, I wouldn’t even worry about it. Just leave the guts in as added weight (theft deterrent) and lock it down, if it’s visible from the road.
There is no real easy way. It’s going to get messy either way. Your going to have to get your hands (and floor) dirty... lol. However, I will say this... since you are new at it, take lots of pictures from every angle as you take stuff apart, put those parts in bags and number them as you go. Write the numbers and order down on a pad and just work in reverse for re-assembly.
...and don’t worry about the hose, buy a new one for $35. The old ones are usually crunchy and brittle anyways.
Here’s a 904, I restored the guts, but all of the internals of each component was cleaned and gutted.
Last edited by Speedracer; Mon Sep 07 2020 08:25 AM.