what size jets 200 Evinrude

[owenton1]

I recently bought a 1989 stratos 201 pro, it has a 1989 200hp evinrude. I have had it out three or four times so far, I dont think Iam getting the speed i should it has a 10 inch jack plate which I"ve raised and lowered trying to find the right position. the last time I had it out I noticed if I backed off the thottle just a little the engine seemed to smooth out and never really lost any speed or rpm it runs about 5500 rpms @ 54 mph with 22 pitch raker prop. but i still have thottle left but when i push it on down it seems to bog down and dosent increase rpms or speed A buddy of mine told me someone may have changed the jets in the carbs to a bigger size he said he has seen it done before and he thought the right size for my motor should be .062 and if thats not my problem what could it be any suggestions would be helpful thanks.

 

[guy74]

Re: what size jets 200 Evinrude

I don't know if you have a problem or not. Every outboard I've every had that last little bit of throttle just made the sound change with no more power. That kinda sounds like what you are describing. I'm sure some more people that have more experience with bigger motors will give you better answers.
Good luck,
Brian

 

[guy74]

Re: what size jets 200 Evinrude

By the way, I checked, your friend is right on the .062 jets.

 

[Dhadley]

Re: what size jets 200 Evinrude

Check the position of the throttle butterflies when the throttle is at wide open. (Obviously without the motor running) At full throttle the line on top of the shaft should be pointing straight ahead and the butterflies should be straight forward too. If they go past center it'll do what you describe.

We've even found that if you set the linkage so the butterfly hides the emulsion tube slightly it'll run the best. We run into this scenario most often with boats equipped with a foot throttle.

You're right, the motor should be turning a few more rpm which should give you a bit more speed. Depending on hull design naturally.