Carb Adjustment

[baxtr]

1989 Force 125, fresh rebuild

Just looking for any tips to make sure I am not running too lean, very nervous about that. My manual says:

turn mixture screws until lightly seated

back screws out one full turn

with motor warmed up, set controls to high-idle neutral

turn mixture screws slowly counterclockwise, until motor loses power and begins to roll due to a over rich mix and note position

slowly turn screws closed, clockwise, until motor runs smoothly and begins to pick up speed. Continue turning clockwise until motor pops or stalls due to a lean mix. Note this position

set screws between the 2 noted positions.




Now, I did all that, but I am very nervous about running too lean, I noticed a thread response from Frank that said don't go more than 3/4 turn past seated. If I am starting at 1 full turn out, I am allready past 3/4. It was a lot of fun rebuilding this last year, but not something I want to make a annual project

 

[nathan104]

Re: Carb Adjustment

You turn the screw however much it takes to adjust it properly. I just did mine and my motor would not even idle at all until I was 1 1/2 turns out.

 

[waquoitdave]

Re: Carb Adjustment

I'm certainly not an outboard expert, but with any 2 stroke it is better to err on the rich side, at least until the motor has some time on it.

 

[roscoe]

Re: Carb Adjustment

From where you have it adjusted, turn it out 1/8 turn more.
If it is too rich, it will stumble stutter - then accelerate, when you give it throttle.

If it is too lean, it will die when you give it throttle.

Make sure you baby that thing during break in, and use double oil for 10 hours,

 

[baxtr]

Re: Carb Adjustment

Allready ran double oil through, broke it in, runs great, just wanted to be sure about the carb adjustments. I am pretty sure I got it right, and I did even go a bit richer just to be sure, was just getting some more opinions on how to know for sure.

Thanks