gon grats you past stage 1 next step use only one brand of fuel and one brand of glow plugs when you test check the revs and note the position of the needle valve if it colder the nedle will go out and wheen its warm the needle will go in keep a note of how much to establish the normal amount the needle moves if this moves more than normal you have a problem tips buy your galon of fuel wash the empty jug the filter the new one into it also filter the fuel into the filling bottle and use an inline fuel filter then clean all filters regularly also try to stick to the same brand of prop as any changes will likely ghange the position of the needle valve to lean to get the same revs its to loaded result lean run if the needle goes out for desired revs you have no load the plane will limp round all the prop testing can be done in the garden whilst taking note of the needle valve position whe you have compiled lots of data this proces will become much easier remember the 6 pees proper preparation prevents @#$% poor performance phone me any time roy