Welcome at last to Bouncy World!
1. Can you use a track pump to inflate the shocks or do you need a proper shock pump? As above, ask LBS for shock pump.
2. What pressure do I need to run the Rockshox Recons at as it doesn’t seem to give you any pressures? And is it adjustable for rebound? As above.
3. Do you run the tyres harder than you would a rigid bike (used to run them pretty soft 30ish psi as I’m about 90kg and a big guy!). At 90kg I’d be looking at 35-40PSI depending on trails/conditions. The squishier the trails, the lower the pressure. Whereas if you’re gonna do some road/hardpack miles then crank up around 40.
4. Can you use narrower tyres than you would a rigid as the suspension will be doing the work instead of the tyres? Yep. Why wouldn’t you? Should be marginally quicker but normally at the expense of grip. I know better riders than me who run 1.8s but chuck the bike around like it’s on 2.5s even on the slippery gnarly stuff.
5. Does anyone use bar ends anymore? Eeuurgh. Bar ends are just wrong.