Try to make this short
Bought a 16 350sxf a couple months ago not sure on how many hours but I'd guess 60ish. Stripped it to the frame regreased everything changed all the fluids and bearings. I've put 10 hours on it since with no issues.
First race last night. Had a hard time starting the bike in the morning before we left, never had any issue before. Got to the track unloaded and the battery died on first attempt. Got a push start, fired right up and ran fine. Let the bike run on the stand for a few minutes while I finished getting gear on to hopefully charge up the battery. Got on went to the line where I continued let it idle until they let us go (maybe another 5 mins). Right before taking off I noticed a few Puffs of white smoke float up from the radiator over the gas tank. Thought maybe from it sitting running a little overflow Steam is all and took off. On the last lap of practice started hearing a load chattering, rattle or ticking coming from the motor the higher the RPM the louder faster the chatter seems to be.
Turned it off and on a few times, no change (battery charged now). After sitting for an hour and cooling down I started it before loading it up and no noticable nosies coming from the bike at all. Took everything in me not to just race it but I didn't.
Any opinions or advice world be greatly appreciated. Grew up on 2 strokes and am decent with a wrench. Just not very knowledgeable on thumpers. Where do I start?