Last summer I began a rebuild on my 75 CB 550. Carbs, points, timing cleaned or replaced with new. everything should’ve been the same as original. it starts and runs great, idles nice, acceleration is responsive. The problem is when I put it in gear and take off it starts sputtering and continues when I’m driving it down the road. I know the 2&3 cylinder needle valves don’t seat properly and I’m going to recheck the float height. Is there anything else I should look into that would cause it to run so differently when in gear and neutral?