Just bought my 1990 Champion 184DC. It has a 175 Yamaha on it, 1990 also. Just picked it up Friday night from having a new water pump and lower unit grease changed. Went to truman lake all weekend. Friday night it ran really good. I've had it in the water twice and it never goes over 5000 rpm fully trimmed. It has a Yamaha 25m prop on it. My mechanic told me to run ring free through it to keep it clean. I guess no one had ever ran that through there. It must be some potent stuff! After running it for a little while with ring free motor started running like crap! No more than 4300-4500 rpms out of it and it won't hardly idle(really rough). I must have broken loose some crap in one of the carbs. I cleaned the main jets in it and ran it some more. Still no more rpms. So I really don't know what happened. It struggles to get on plane. It has fresh plugs in it also. So that is my big problem I have to have figured out.

Second problem, the Minn-Kota Maxxum 80 lb that is on it the armature is bad in the head I think. It works great sometimes, makes a little noise, and then it will stop. You turn the prop a little and it fires back up(very annoying when your crappie fishing and trying to get to a certain tree in the wind! So I going to research how much that will cost to get fixed. I love the trolling motor. My dad has an 80 lb fortrex and they move that 184 great.

Needless to say it was not the best weekend. But like anything it takes time to work out all of the bugs in these older boats!

Has anyone ran into any of these same problems before? I'm kind of concerned with why it won't go ahead and run up the rpms???

Thanks, Matt