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Big E.

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I have a 1993 Evinrude 70 it has sat in the garage for 5 years with fuel in it. Was told it ran just fine when he put it in the garage but had some ignition switch issues. Got those lined out. Tried to start the motor. Tried to start the motor. Finally got down to replacing the electric primer fuel filter. The spark plugs got the motor where it will run but doesn't like to idle but may take 30 or 40 cranks to get it started. I'm beginning to think that the carbs need to be cleaned, but the guys keep telling me that I don't want to do that. It won't run right afterwards. Any suggestions?
 
Clean the carburetors.-----Ignore folks who say it won't run right afterwards.----Are you pushing the key in and holding it in while cranking it over for cold start??---All this cranking may damage an EXPENSIVE starter , so fix the issue !
 
Big E. said:
I have a 1993 Evinrude 70 it has sat in the garage for 5 years with fuel in it. .....got the motor where it will run but doesn't like to idle but may take 30 or 40 cranks to get it started. I'm beginning to think that the carbs need to be cleaned, but the guys keep telling me that I don't want to do that. It won't run right afterwards. Any suggestions?
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As Racer said, clean the carburetors. You likely have varnish gumming up a passage or needle valve that is preventing correct fuel flow. A correctly cleaned, rebuilt, and adjusted carburetor will make the engine run exactly right assuming spark and compression are both good.

Also, after setting for 5 years I would suggest a new water pump to be on the safe side.

KJ
 
kevinj said:
As Racer said, clean the carburetors. You likely have varnish gumming up a passage or needle valve that is preventing correct fuel flow. A correctly cleaned, rebuilt, and adjusted carburetor will make the engine run exactly right assuming spark and compression are both good.

Also, after setting for 5 years I would suggest a new water pump to be on the safe side.

KJ
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Thanks for the input guys. Yes racer I am using the choke primer. I turned it over a couple times and then I push it in to turn the key. I hear the primer. Click turn it over a few times. More. Continue that process until I smell fuel. Then let it sit for 20 or 30 seconds and repeat. I saw on the Marine website that spark plug gap should be between 028 and 033 so I started at 030. Got a lot of backfiring went up to 033.it didn't fire at all after multiple of tries finally dropped it down to 028 repeated the same process and it started. I had to water muffs hooked up to it and had a good stream coming out of it so I let idle for a while having no point of reference of what a 30-Year-Old 70 horse outboard motor should sound like the motor just didn't sound like it had a good rhythm so I'm game for cleaning carburetors I'm not scared of getting my hands dirty or doing some work and do a pretty fair job of following instructions. Where would I find said instructions? And would you recommend a guy doing it himself and how much trouble can I get myself into?.
 
If you have to fiddle with sparkplug gap you have magneto or battery / starter motor issues.-----So does spark jump a gap of 3/8" or more on each lead , yes or no ?----The entire system in good condition can jump a gap of 1/2"-----. yes 1/2" if in good condition.-----Carburetors are elegantly simple.
 
Clean the carbs,high speed jets and install new kits. Only use OEM or WSM kits.DO NOT REUSE OLD GASKETS! Flush all fuel lines before reinstalling carbs
 
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