Start by unplugging the TORS on top of carbs and the black box under the left side of gas tank. Then clean the jets in both carbs making sure the black tube connecting them is back in place. You may also have an air leak.
I've got a Ricky stator in a box. It cost me a lot of money before I found out it was the cause of my lack of bottom end and bogging. Get a new OEM stator.
Make sure that little black tube going across the carbs is there. The tors box under the gas tank is unplugged. Just for info all the aftermarket stators are shit. It sure sounds like your pilot jets are clogged. Why did you take the carbs apart in the first place?
It was going to happen sooner or later. Now see if we learn from our mistakes. Doubt it! But it's sad when you die for a mistake. Condolences to their families.
if you don't ride in water or mud you could remove the air box and go with dual K&N pods. You'll have to go up one or two sizes on the main jets. And 2nd on the timing plate +4 is a great mod.
Sorry about your buy but you could buy a new top end off a seller on this cite for 350 and a trans from eBay. Get a manual and ask questions and you'll never need a dealer for repairs.
Same here Yamalube 2R for 15 years no problems and I run it in 2 banshees, a blaster, and a KTM 250sx. I just put a 4 mil in my 95 banshee and the stock crank looked great.