'96 Johnson 200 carbs - idle mixture adjustment

[metriccrescentwrench]

My carbs are from a '96 Johnson 200 (they have a needle valve in the throttle body). What's a good starting point for adjusting these, and do these needles go in to richen or out?

Reason I'm asking this is I'm experiencing lean sneeze on at least a couple of cylinders - I can see an intermittent flash from behind the carbs (inside the intake) just as the engine stumbles.

 

[levi_tsk]

Re: '96 Johnson 200 carbs - idle mixture adjustment

ive heard two turns but ive also heard one and a half where is it at presently?

 

[daselbee]

Re: '96 Johnson 200 carbs - idle mixture adjustment

Oh wow...

8 turns out. book says 5.

I posted on an ethanol titled post, which got locked by the censoring mods.

You should PM me and we can exchange phone numbers and discuss this.
I iwll be happy to talk to you.

 

[dingbat]

Re: '96 Johnson 200 carbs - idle mixture adjustment

I had the same issue. Mine was sitting 8 turns out and still sneezed off and on. Come to find out that the idle orifice where one size smaller than stock for whatever reason. Put the "stock" orifices in and they are now set 5-6 turns. So far so good.

 

[metriccrescentwrench]

Re: '96 Johnson 200 carbs - idle mixture adjustment

Hey daselbee, I think I got it. I finally discovered that after reinstalling everything there was a little bit of binding on the carb linkage and the butterflies weren't quite closing all the way. When I did the link-n-sink I was pushing the butterflies closed and never noticed the problem. I got the binding adjusted out of it and with those Chris Carson reeds it now idles great. I should have some time this weekend to run it in the tank and fine-tune the idle screws. Then maybe for father's day I can take my hot-rod out and see what she can do !!!!

Thanks for the help.