D T Wave Posted April 20, 2007 Share Posted April 20, 2007 Hey all, Just wondering how hard it is to pull apart and clean up my outboard Carby. I've got an older style 55hp Mariner Marathon. Early 80's model The old girls running a little rough and have been told it just needs a bit of a clean. I'm pretty mechanically minded and handy. Any ideas or tricks would be great. Also any idea where i might find a service manual?? Cheers Dave Link to comment Share on other sites More sharing options...
gone_wishin Posted April 20, 2007 Share Posted April 20, 2007 It's not difficult, I did it once on a 175hp V6 Evinrude (triple carbs). They are very basic the only critical thing I had to worry about was syncronising. I was given some advice by a mechanic to make up 3 aligator clips with straightened out paper clips attached, I then cliped these to the carbie butterfly shafts and kept adjusting until all three moved in unison. worked a treat. One thing I found amazing was the price of parts, I wanted the exhaust gasket - it was $120 but if I got a gasket kit it would be $109 which included the exhaust gasket and every other gasket and O ring in the outboard (including carbies), go figure. Link to comment Share on other sites More sharing options...
Chris 55 Posted April 20, 2007 Share Posted April 20, 2007 DTW if you have some mechanical knowledge there is nothing to fear Remember to have an area that is clean to lay it out on as it's basically the float/needle and seat in the fuel bowl all the jets will be in the carby body take the float pin out carefully so you don't drop it and/or the needle from the needle & seat assy - check condition of the needle tip should be OK but look anyway Have a tin of carby cleaner and a tin of Inox/WD40 take out the main jet & emulsion tube assy and check visually and by blowing through it give it a hit with the carby cleaner (CC) then hit up the cavity in the body where it came from look for the airbleed drillings and shot some CC through there also any mixture screws need to be screwed in gentle till they seat taking note of how many 1/2 turns so you can reset to where they were before (a spot the motor will run at) before you remove them just take your time and be generous with the CC the hit it with the Inox/WD40 re assemble - float assy will be same level as it came out usually level to the carby body a light greasing on orings will help seal things test the needle & seat but sucking on fuel inlet tube - it should hold suction - refit to engine - clean , replace or fit fuel filter then fire it up - let it run (with hose connected or in tub) a couple of minutes till warmed up the adjust mixture slowly screw in till the engine starts to stumble and back out about 1/4 turn if your unsure take a pic at each stage of the disassembly All up 15 - 30 minutes work no need to rush Chris Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now