I've bought a 4 deg ignition advancer, but when I've tried to fit it I can't get the bolt holding the original to slacken.I do have an impact driver and an air powered rattle gun but due to it being on the crank end I didn't fancy risking it, what has everyone else used to crack the threadlock??
Where does everyone get their advancers from?
Been reading this and thinking myself on changing it. What are downsides of having the 4 degree plate on?