help! nc30 filling inlet with fuel

[vfrman]

Been fine for the last few weeks, no petrol in oil, was needles and floats, remaining petrol fumes in engine were being funneled through breathers, making it run rich and made the throttle weird. Let run for 10 min with breathers off and was fine after that.

If you had enough fuel in a cylinder to want it to hydro lock, then fuel leaked past your piston rings and got into your oil. Change it. Or don't...they are only bearings and easy and cheap to replace.

[RickOliver]

Yeah, and if it follows the usual pattern and locks a big end so fast that it snaps the conrod, a bit of duct tape will probably fix that...

[aky141]

Oil and filter was drained and replaced with the needles. It's fine

[Neosophist]

Been fine for the last few weeks, no petrol in oil, was needles and floats, remaining petrol fumes in engine were being funneled through breathers, making it run rich and made the throttle weird. Let run for 10 min with breathers off and was fine after that.

this sounds very very sketchy, especially if you changed the oil.

perhaps you had a leaking float that handt quiet sealed and it sealed itself up, not uncommon on carb rebuilds.

wouldnt have thought any residual fumes would make it run rich.