Normal
The pj's just like yours came until the 97 came out. A 38 mm pwk off of a kawasaki or honda would work just fine. the needle that came stock in your rig as well as the other jets will work in the pwk depending on where you get it. I am not a big proponent of swapping carburetors, but with 5 gallon bucket once filled with pj's I can pretty well suggest that that one is ready for retirment. One of the few things honda did with the mid 80's mx bikes that DID NOT get copied by the rest. Setting your idle with what ends up being an air to fuel ratio change is probably one of the dumber ideas I have seen or heard of. What it boils down to is making sure that you will need to reset it almost by the minute as the air temp, altitude and engine temp change the fuel to air ratio requirements.