by Nelso » Thu Jun 20, 2013 7:54 pm
Penatrine works much better than WD40. Keep applying it for a day or two and attack it with a rattle gun. Once it starts to turn, keep it going because the heat you generate can cause the thread to bind again if you stop. As for holding the nut, I have never pulled a 9 apart so have no idea.
Green '08 ZRX1200 Road bike
Green 2012 ZX10 Track/race bike
Green '89 H1 ZXR750 race bike
'89 RMX250 motard race bike
2015 YZ450
2017 KTM EXC300