If the 30,000 was done 4,000 ago I would first see if there is an invoice showing that all of the items on the 30,000 checklist were actually performed. And if they were, my next question would be if 30,000 was done @ 26,000, when was 20,000 service done???
If you also know that info then you will need to do what was done for the 20,000 svc again, 20,000 miles from that point (so if it was done @ 15,0000 it will need to be done again at 35,000)
So you would need, at that point to: renew oil, filter, air cleaner, coolant, fuel filter, brake fluid (every 2 years), final drive oil.
And check/adjust: ecm (check for stored DTC), spark plugs, throttle body balance, throttle cables, headstock bearings (check/adjust/lubricate), fork seals, brake fluids, brake pad wear, calipers/master cyl for leaks, clutch cable
The extensive service interval is expensive (rhyms) - Can you perform some of it yourself? You should at least do the ones you can