first time rebuliding my carbs, any advise..please!!!!!

[minocqa]

hi<br />this is the first time i have ever rebuilt my carbs<br />i have a 7o hp johnson 1976<br />i have a omc shop manual for the motor <br />but i just wondered if you guys had any advise what to do and what not to do.<br />i would really appreciate your help<br />thanks<br />Don

 

[Paul Moir]

Re: first time rebuliding my carbs, any advise..please!!!!!

Looks like minocqa is lucky - the aftermarket carb kit for his engine comes with a float now:<br /> 18-7222<br /><br />Still, the OEM one costs $18, so it's not much of a savings.<br /> OEM, PN 396701

 

[bubbakat]

Re: first time rebuliding my carbs, any advise..please!!!!!

http://www.frontiernet.net/~bob_aloo/Carbclean/CarbClean.htm

 

[GatorMike]

Re: first time rebuliding my carbs, any advise..please!!!!!

One note wear glasses when spraying carb cleaner....that stuff burns and loves to ricochet back into your eyes.

 

[steam_mill]

Re: first time rebuliding my carbs, any advise..please!!!!!

I did my carbs a few years back myself with the Seloc Manual. Hadn't started the motor that year yet either.<br /><br />I was sure I was going to take it to the Marina.<br /><br />I followed the instructions carefully. Did all the work in a lasagna pan so I would no loose anything. I used spray cleaner.<br /><br />Put it all back together.<br /><br />Hooked the battery and gas up and turned the key.<br /><br />It cranked but did not start.<br /><br />Realized I forgot the choke. Choked the engine. Started right up!<br /><br />Boat never ran so well.<br /><br />Moral:<br /><br />If I can do it (Trust me I'm no mechanic; I don't fix anythging but my boats. Prefer to call professionals!), then anyone can do it.<br /><br />You'll be fine. <br /><br />Post your results!<br /><br />Joe

 

[JB]

Re: first time rebuliding my carbs, any advise..please!!!!!

Do the carbs one at a time, Don, and be sure each goes back in the same spot it came from.<br /><br />Good luck.

 

[uncyboo]

Re: first time rebuliding my carbs, any advise..please!!!!!

Originally posted by JB:<br /> Do the carbs one at a time, Don, and be sure each goes back in the same spot it came from.<br /><br />Good luck.

I'm not questioning, just curious. Why is this important? Are the three different?

 

[WillyBWright]

Re: first time rebuliding my carbs, any advise..please!!!!!

I believe one has the cam pick-up that opens all three throttles. The other two should be identical. Check the throttle shafts for wear. They wear right where they turn in the carb body and leak air creating all sorts of nuisances. In extreme cases they can lean-out the mixture enough to do some serious piston damage.

 

[uncyboo]

Re: first time rebuliding my carbs, any advise..please!!!!!

Thanks. I'm about to do mine (first time ever on an outboard) and I'm the kind of guy that not only wants to know how, but why. Maybe it's a fault.<br /><br />minocqa -- don't mean to hijack your thread here.

 

[minocqa]

Re: first time rebuliding my carbs, any advise..please!!!!!

hi<br />thanks for all your advise<br />i bought a OEM shop manual for the motor off ebay<br />i'm just a little nervous about doing it rebuilding them myself.<br />Don

 

[McGR]

Re: first time rebuliding my carbs, any advise..please!!!!!

minoqua -<br /><br />To gain access to all passages for complete cleaning usually means removing the aluminum core plugs. The factory manual should do a decent job of explaining this... Nonthteless, here's a couple of notes.<br /><br />1. Drill slowly and stop drilling once you have gone through the plug. If you push too hard and go too far you can damage the carbs permanently.<br /><br />2. Coat the edges of the replacement plugs with a light coat of Sealer 1000 or other fuel resistant sealer. Leaking plugs are unacceptable.<br /><br />3. Don't kill the new plug when you reinstall it one or two medium strikes with a flat punch should do it.<br /><br />Hope this helps...