Cheers.

I found a few problems. The checkvalve was stuck open, sorted. Next the regulator had a blockage. IF you screwed it in it didnt let any fuel pass and if you screwed it out it wouldnt stop the fuel flow... took all that apart and sorted those.

The problem now is that my pickup is rather slow. The idle is opne about 1 1/4 turn, the regulator screwed in about 2/3 turn from flush and the top end around 2/3 open. If i screw the top end in i lose revs. My fuel is currently Dynaglow 16. The last gallon of it which I used was perfect, but it seems to have lost its performance since I started the second gallon.

I've checked the tapets. You check them both with the motor reaching compresson right?

I have some Yamada 20% here which I'll try through it later.

Cheers.