jelly

Hello I am a bit of a beginner in the world of trials bikes so go easy on me please. Please could someone help before I start pulling my hair out. I have an old TY50 that will not start. It did start but it would not run for very long so I put a new plug and points and now it wont fire at all. There is a spark at the plug but barely at the points and I have been adjusting them constantly to try and get a spark. There are new points and I still cannot get a decent spark and the bike will not fire. Is the timing out and if so how do I go about setting it to the correct timing easily. Any advice would be fantastic. cheers Steve