Thats good new about the noise. The carbs. can be a PITA sometimes. Sometimes its as simple as pulling it off and cleaning it and sometimes you can do that 10 x and it doesnt do anything. I started out by sending our carbs. to Hiteparts.com and having them rebuild them. They do a fantastic job. Like new condition. About week and a half to two week turn around. Comes out to be around 350.00 with shipping. Sometime ago I needed a Honda carb. and called everyone I know in the mini truck business and could not fine one here in the states. After spending 3 days hunting for it I ordered a factory rebuild from Yokohama Motors in Japan. Got here in four days and with shipping is was about the same price if Hite Parts did it. Havnt tried G & R yet but might at 275.00 a pop. Then again 65.00 + - and you can get factory rebuild straight from Japan. All depends on what side of the bed you get out of in the morning.