After a long time I have now fixed my wiring got a new CDI, got
spark, put new head and base gasket onto my GS250FWD with a lot help
from you guys. Thank you

Now I have reached the part where I want the thing to run. I have it
in a go kart. Spark is strong. Exhaust is complete but no air box.

It will only start and run on full choke. it takes ages to accelerate
and will only get to a max rev of aprox 5000 RPM it is a rough and
after it has been running I feel the exhausts and it is hot in
cylinder 1 and only warm in the others. It seams to run very rich and
whilst trying to start can backfire out the carbies.

I have the Carbie set up as:
There are four hoses on the carbies 1 is fuel inlet. and other 2 are
return that I have running to the ground (nothing comes out) and the
other I don't know I have tried it un-blocked and blocked.

Another question is how do you check the float levels. I am used to a
window and level mark.

If anyone can help It will be much appreciated.

Thanks

Malcolm