I have a e-2004 hinomoto on back below the lift arms is a lever on right hand side looks to go into the hydralic cylinder looks to have hole for a pin what is it for? i thought maybe a tiller or something?
That would be your draft control. If you have the factory tiller, there will be a cable going from that lever to the tiller. When the tiller goes over a bump or in a hole it tries to level itself.
The cable looks like a choke cable, only larger. The other end is attached to the rear lid that covers the tines. When a mound of dirt pushes against the lid, it pushes the cable towards the tractor and the hydraulic lift compensates for the variation in the terrain.