I know its nothing to do with the size of the engine, the feeling is that the standard plug as per specified back when the bikes were new in the 50s, are now not as suitable for fuel with an ethanol content of 5% which is what we put up with here...A hotter plug seems to improve things (looking at t...

Hi All, My 55 VB is a bit of a pain to start. The mag gives a nice fat spark, and when running, the engine plods along nicely, and will pull well up hill with no problems, but when I come to restart from hot it can be a bit of a b*****r! What should I be setting the timing at BTDC? I assume it needs...