I just bought an evinrude 5 hp angler and I have no Idea what year it is. Also it runs faster at half choke than with the choke off. I was told that I needed to adjust the fast jet in the carb, but I can't find the screws for the idol and the fast jet. The serial number is 5702a e03808.It cranks with every pull and runs great, but I would also like to know the gas fuel mix ratio for a six gallon tank. Any help would be greatly appreciated.
Last edited by Deron : April 13th, 2007 at 12:03 AM.
Reason: wrong serial number
If you go to the BRP Parts catalogs, you can download the parts diagrams and parts lists for the 1968 5HP Evinrude which is very much like yours. The carburetor diagram shows the needle. Use the icons above the diagrams to enlarge and print.
The 1968 has a fixed, non adjustable high speed jet, and I am assuming the '67 does also. It is the orfice plug deep in the hole behind the hex plug in the bottom of the float bowl. It is not clean and that is what is making your motor run lean, requiring choking. The orfice must be absolutely clean with not even a trace of any gum or anything in it.
Thanks for the quick replies guys. That is exactly what I needed to know. I think I had the wrong mix ratio as I was last told it was a 24 to 1 and was putting a quart per six gallons. The motor wasn't running smokey at all so I guess that is ok. Should I drain the fuel tank and remix?
Cleaning the orifice may not be an option for me because I have almost no knowledge of small engines. Is it ok to run the motor at half choke? Also is there any type of cleaner I can run through the engine to fix this problem? What are the long term effects I am looking at? Thank you guys so much for the quick replies. I am absolutely amazed at your knowledge and helpfulness available on this forum.
While it may not actually harm anything to run it a half choke (if you are lucky) my advice from here is get it fixed. Will it self-fix itself with some kind of magic potion? Who knows? Probably not.
Running it at half choke for an extended period can hurt the motor. Any time you run the motor with a mixture that is less than optimum you are making the engine work harder. This can do many things, from building up excessive carbon to fouling plugs to overheating. Fix the problem and then you won't have to worry about it...
- Scott
You could run a decarb (carbon cleaner) treatment like sea foam through it; add it to the tank as per directions.It may clean the carb jet.You can run it using the choke though if it presists on running lean you could burn a piston.
If you are going to run it with the choke I would use the 24:1 mix as a precaution.Until you can get the carb rebuilt.
These motors have been known occasionally to have powerhead problems even when run at the designated 50:1.Once the carb is fixed just be sure to have at least the 50:1 mix and maybe go to 48:1 or just add a pinch over the 16 ozs. per 6 gallons.
Evinrude 5 hp angler year? choke? Mix ratio?
Linear Mode
