jpm200
As you have the F model ,like me,I would get rid of that small PE 28mm carb ,airbox,
inlet manifold and convert to the E spec.Pwk 35 carb,I used a KX125 airbox as it has extra side inlets.Fit some Boyseen 607 (I think) and get a pipe.
Rejet it and it will be like you have a different bike.
We already have the heavier flywheel which tames the hit and great for the woods.If you can find a plastic tank then get it(lighter ,larger capacity)
The list can keep going but I suggest you do this first.
It's great how you can turn a fully road worthy bike into it's off road variant and know one would be the wiser.
Other benefit is the lighting coil is about double the capacity of the E model.
The only thing I need now is a 18" wheel.