when buying my bike to restore i came across the same problem.. i just used a blow torch to heat up the frame making sure you dont let the metal go red but it seems to ease it out. only try this if your thinking of getting a re-spray also as the paint does not take kindly to the heat.
when buying my bike to restore i came across the same problem.. i just used a blow torch to heat up the frame making sure you dont let the metal go red but it seems to ease it out. only try this if your thinking of getting a re-spray also as the paint does not take kindly to the heat.