carb/minkuni

I just picked up a 2000 blaster on trade for a AR-15 and it's a pile of crap. The engine is brand new bottom end to top,I was shown all paperwork and pictures of the build being done October '23. Afterwards it sat til now and just went to crap. I have read all the forums and ran through the...

Ok finally have a oem cylinder and head yay for me no more China junk!!! The last motor I think I messed up myself by trying to tune the carb and changing out jets ALOT trying to find the perfect mixture...So my point and question is idk where to start when it comes to pilot jets size and main...