I have three 1968/69 CB250K0 tanks (with the rubber knee-pads and squared off look ... rare!) that I am currently cleaning up prior to two tone painting. I have masked them with gaffer tape so that I can blast the underside and the bits under the rubber knee pads without getting a blast finish on the 'visible' areas. Then I am going to chemically strip the rest of the paint in the 'visible' painted areas. All three are really good condition with so significant rust inside. I blasted one yesterday OK but the other two have a very faint whiff of stale fuel inside. Whilst blasting other steel parts, I have seen the occasional spark in the blast cabinet, so does anyone know what I can put inside the other two tanks to prevent blowing myself up! I am blasting them with the tap,and link pipes sealed off and an old, scrap, cap fitted. BTW the chromed caps for these (fit other bikes too) are still available new from Honda (mine were from DSS), at less than a tenner including the seal !
