Hi, this is my 1st post on this forum. I am the proud owner of a CB750 K8. Recently my throttle started to play up. When i shift gears, especially from 1st to 2nd and at low rpms, the revs of the engine remain high when shifting. This also happens to a less extend when shifting other gears. When i rev the rpms high from 1st to 2nd this doesn't occur as frequently. I unscrewed the cap that covers the throttle cables on the handlebar and realized that when i first start turning the throttle the cable loosens and after a certain point it tightens. if i release it when loose then the cable doesn't return rapidly. Changed cables but the problem persists. Any recommendations will be appreciated. Thanks.