Drop the forks and do properly. Can leave damper in but use fluid to flush it by pumping it to clear old shit old till fluid looks nice. Then put new fluid in.
Don’t waste time sucking fluid out with long hose. Do it proper.
This. Either total strip down and replace everything or flush with new fluid a few times then refill to correct level. Should be done every 2 years for a bike with moderate use imo. Shock oil quickly looses it's damping abilities. And it's cheap
Drop the forks and do properly. Can leave damper in but use fluid to flush it by pumping it to clear old shit old till fluid looks nice. Then put new fluid in.
Don’t waste time sucking fluid out with long hose. Do it proper.
Check delboys garage on YouTube Jean pretty good.