tire mounting problems

[subninja]

I am a new dirt bike owner but a long time mechanic. I have just finished my first attempt at mounting some new tires on my cr250. I am having the same problem on both of them. One spot on a single side isn't completely seating the bead against the rim. I took them both up to 30 #s. Both areas not seating are around the valve stem I'm not sure if that matters. Any help would be greatly appreciated thanks in advance

[fordmugg]

is it not seating around the valve stem or the beed lock?...also make sure you use a little soapy water around the rim and tire so it can slide in and seat ....

[mxerhale]

Getting the tires warm sometimes helps. And sometimes I would bounce them (straight up and down like a basketball) around trying to hit the unseated spot on the ground.

[pjg351]

Don't be scared to pump them up to 70psi to seat them, then back them off to 13-14psi.

[subninja]

I just got back on and finally found my own post, sorry I'm not exactly an expert forum user yet. Thanks for all the help, I finally just pumped 60 pounds in it and left it for a few hours and they both just slowly crept onto the shoulder. It was kinda weird, I have mounted lots of other types of tires and never seen anything like that before. Thanks again for the info

JOHN

[dist11 814]

wd40 around the bead then pump to 40 psi and whamo!

[subninja]

wouldn't wd40 be a bad idea to put on a tire it's an oil and oils break down rubber???