hi i have a quick silver remote control,, the problem is that i can not get it onto throttle only...the button that you press just won;t push in ...i have had it move once or twice but never when i need it...is it just a case of loads of lube ????? if so what kind ...or is it a strip down and how complecated is it to do...not to good with springs and that ?????? fat fingers ha ha ...