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Hi to all members here on the forum. I would like to share some thoughts on my experience dealing with aftermarket carbs. I got my 1980 XS400 for $200 from a widow. The gas tank was perforated and the bike had been sitting on a garage for 6 years. I tried to keep the original carbs but one of...

Hi to all. I have a 1980 XS400G with brand new Mikuni VM34 carbs. The bike idles perfect at q200 rpm and runs fine but won't get past 4000 rpm when running. After that she is not responding and she keeps running but losses throttle response after 4000 rpm. As I mentioned the carbs are brand new...

Hi to all. This is my first post. I bought a 1980 XS400 which was sitting for 4 years in a garage. I bought new carbs, battery and a new tank. She fired up with the kick just fine given that the starter is not working. After this first start she is getting harder and harder to get started. I...