Hey guys I drained my bowl on my carb yesterday and evidently didn't tighten the drain screw enough. Anyways it fell out when riding and a new one will take 2 weeks to get here. I didn't get a good look at the screw but is there anything special about it? Can I just put in any screw that fits?

 

I never took one out all the way, but I imagine it would have to have a machined seat on the end of it to form a seal, or the gas would just leak right past it. I wouldn't try using anything other than the proper screw from yamaha. If you use the wrong thing you could end up messing up the threads or seat, and have to replace the whole float bowl.

 

I've had mine out before...recon is right; there's a machined end on it. I'd only use the correct screw...don't try to substitute with something you find at the hardware store.