I would like some help with a tiny problem that one of my good friends have with his 1942 Royal Enfield model co, probably a war time model as it comes from Pakistan. The problem is to pull the magneto pinion off the magneto shaft. I have lent him the puller that I use on My BSA's but he claims that it's too large. Does any of you know if there is different types of pinions?? I haven't had time to look for my self yet so I only has his word for it.