My XR400 was extremely tricky to get going again after dropping it in a river and I eventually got it going on full choke but it would die as soon as any throttle was applied. Leaving it ticking over for a few minutes and draining the float bowl again I was eventually able to rev it and it ran fine.
Well today I gave the bike a good gunking and hose down and I had exactly the same symptoms and once again I had to leave it ticking over on full choke for a while before it would rev. Once it revved enough to get the choke off it was fine.. I'd taped over the air intake before I started with the gunk to be on the safe side and I also drained the float bowl but it made no difference.
As I can't see water in the fuel being a problem this time my question is is there something else I'm missing here? What about the spark plug recess. Is there a drain hole to stop it filling up with water?
Any other advice in starting / restarting a soaked XR?