Hi guy just wondering if you can help. I have bought new battery and rectifier put fresh juice in nplenty spark but wont start pissing me off now I was thinking about buying a starter relay suppose to be common fault ? please help haha

 

If you have good spark the next thing I would check is to see if you are getting fuel. Has the bike been sitting any extended period of time? May be time to go into the carbs and give them a good cleaning

 

A little history always helps. When did it last run, is this a gradual or sudden change?
Did it run fine, you made a change and since then you can't start it?

Does it try? Cough, sputter, stumble or none of the above?
You mentioned the starter-relay, does the starter work and engine doesn't start
or the starter (itself) is not operating?

If you are sure that the starter/charging circuit is in good shape, I'm agreeing with orangef3,
it's probably a carb and/or fuel-filter issue. That would be the next area to investigate.

Drop a dime with more details and perhaps, we can help narrow it down.

Good luck, Ern