Change handlebar grips

My 1980 has the original foam grips and they need to be replaced. How do I do this?  

If over the years the grips have stuck to the handlebars, insert a thin screwdriver between the two parts to make them expand, spray with WD-40 and try to turn the parts outwards.
 If it is so stuck that it breaks when it expands, use a cutter and a little solvent to remove the remains of the foam.

Thanks, I'll try that.

coleface wrote:

My 1980 has the original foam grips and they need to be replaced. How do I do this?  
 

They wouldn't have had foam grips originally (assuming you mean foam, as opposed to the more generic 'rubber').  In any case, slide a thin Phillips head screwdriver in-between the grip and bar (or grip and throttle tube) and simply rotate the screwdriver - it'll 'walk' around the bar loosening the grip.

Or use compressed air.