Well, this is the first screw on this bike I couldn't turn out - actually two of them.

I am trying to check the float levels on the four bowls, and #'s 1 & 2 drain plugs came out just fine, but 3 & 4's won't budge. So I'm asking if anyone has a good set for the left side labeled as C-2 on the bottom edge where the drain plugs actually turn out (Yamaha part # 4H7-14982-00-00). The right side bowls are labeled C-1 and I don't need those. I'm going to contact Yamaha today to see if they have the drain plugs (Yamaha part # 4H7-14191-00-00). If they have them I'll try to drill them out.

I've been troubleshooting the carbs on this bike and the #1 & 2 float levels are low, #1 being really low, but luckily when I had it opened yesterday I noted the float needle tang was bent more than the others, so that makes sense.

Thanks!

Mine were stuck too. I heated the bowl from inside with a bunsen burner and they came loose. Didn't get them too hot, I think a lighter would be enough.