Ok so my 250 has been running ok for a while, though it was becoming harder to start and never really idled that well once hot. So recently I installed a carb kit and cleaned out the carb. Since doing that I went away and the bike didn’t get started for 5 weeks.

Now I can’t get it started at all. It cranks and cranks but doesn’t fire up. I’ve checked the spark plug and it seems ok. I’ve dumped the old fuel, cleaned the tank and tried fresh fuel. I’ve got a new spark plug on the way to be sure.

Strangely it seems to spit fuel out the back of the carb when cranking. It comes out from the little brass coloured tubes at the back. Would this indicate problems with the float/float valve? The valve was new but float wasn’t. And could this cause a no start situation?

Thanks,
Luke