I thought I should get about 2.5 litre per 100km with my 4 stroke 200cc kinlon but on a rough check it is more like 3.5+ on tarmac and that is of course a smooth run without revving all over the place as one would in the bush off-road. That is perhaps because I weigh about 100kg with leather and helmet and also being 188cm I catch a bit of wind ... still disappointing with just an 8l tank and Australia is a big place if you go bush across country.

I cannot find a small flat canister to carry a spare 4 litres strapped behind me in the local shops and I am a bit wary of that anyway. So I thought of changing the tank. How easy or usual is it to change tanks? I don't care about looks, are they pretty standard or are they all made to fit the bike? Not something to faff about with lightly but I could do with a 12 litre tank at least.

Now I have just got to work out the extra weight/performance loss curve of course.