Hi I’m experiencing the bike a bit lumpy in the low rev range.. Like if I’m almost down to a stop in 2nd gear and around 1800-2000 rpm, then accelerating, it jumps a bit until it reached +3000 rpm The bike pulls well, it’s just that low rev range that bothers me.. Almost kangaroo-ing. Is it suppose to be like that? The bike has fresh filters, plugs, oil, clutch springs, slave clutch and carb synchronised. Any suggestions or is it the way these old bikes are?? Kangarooing around when doing towns and so on?