Report Starter motor can anyone help in Engine Posted September 17 11 hours ago, IanS said: Slow cranking can also be a sign of over advanced ignition. It's worth considering the point that Ian is making here. I experienced this with a 1380 tuned Mini (many) years ago. Try retarding the ignition timing or, alternatively, crank with the ignition electrically disconnected. If the engine turns freely with no ignition, you'll know it's ignition timing causing the issue.