105258
Old Rider - OK Mechanic
Does anyone know if I can substitute the plug used in the R1200 NGK LMAR80-J, for the one in the R1250 NGK LZMAR8AI-10 ? The latter is supposed to last twice as long 100,000 kms as the plug for the R1200 50,000 kms, but I have seen enough wear, in the 1250 plugs, to require re-gaping after as little as 20,000 kms. And they cost twice as much.