Difference between starts with 9 and 11 teeth

Hello! I need to know the difference between the two starts (9 and 11 teeth). Which is more convenient for a 1.9 Podgeot Diesel engine?

It depends if you bring the 11 eleven and if you bring the 9 nine, there is not much more the one again in the 11th and viseverse, this depends on the manufacturer but put the one that breaks but lasts very little if it works for you, since the step is not the same of the vokante, in the without words you cannot put a 11 if it is nine-

The crown tooth distance is not the same as a 9 teeth pineapple to one from 11, if you don't put the one that touches it when you start it scratches the pinion in the crown.

Thanks for your answer!

Thank you for your answer, the topic is that I do not know what starts it carries ... No one can tell me exactly which one that is going. Is there any table or a method that tells me according to the crown that the engine has?