I have an older set(1996) of Quicksilver 2000 controls...connected to a 1990 Mercury 25hp... I need for these to "push" to open the throttle as opposed to pull the cable which they currently do.. I was told you can reverse them but I'm unable to find anything online and I've played with it for an hour with no success. ... ...or do I just need to buy a set that are already set up to push.....any help would be greatly appreciated