my lights went out befor it was 3 months old. they replaced them. then the next year I did. Yes i put grease on them no they did not flicker. the only lights that work now Is 2,4,5 and n. Sometimes R I have pay about $65 2 times, Now I just don't worry about it

 

I had the same thing happen to me, check all the bulbs, i was told it could be from pull-starting, i had every light burn out
hope this helps.