NDDan
Guest
Throttle friction device is very good on these machines and has never given trouble. You very likely need to take up some slack in cable. I'm unsure just how they do it on the liquid 52 but bet it is made the same as most all other models. You need to adjust nuts that hold cable to pull throttle lever further toward high idle and or turn clevis onto cable further. Most machines have overtravel spring in clevis and it should be compressed a bit at high idle. Hope this gets you fixed up.