i got the su blue's

[3sev3n]

My su are running way way to rich, I dont have a flow meter, and my spark plugs have so much black soot after 1 month,any quick way to adjust w/o a budget or experience?

[hughdogz]

Is your choke cable on? Make sure that with the choke off, the jet nozzles are seated "up" against the body. If they're stuck in the "down" position, you'll be really rich.

 

Unless there is a problem with the float (gross mixture adjustment), you can adjust the mixture with the mixture screw (fine mixture adjustment). It is that big threaded "ring" below the body (above the jet nozzle) that has one big and one little bump on the circumference.

 

Stock setting is 3.5 turns "out" (clockwise looking from the top). By using the bump on the ring, count how many turns "in" it takes until they stop, so that you know where you started from.

 

If yours are out much more than 3.5 turns, it is probably why you're running rich. The knobs are pretty sensitive, even 1/8 of a turn can make a substantial difference on the mixture.

 

If you're still super rich after running at 3->3.5 turns, look at an improperly adjusted choke, float, needle, (or maybe) not enough oil in the damper reservoir.

 

If you can, get the "Just SU's" video from Ztherapy. It explains almost everything you need to know about SU's.

 

Hope this helped...

[Buma]

Thanks, I needed that info too!

[3sev3n]

:mparty:thanx hughdogz that was very helpful it was about 4-4.5 turns out so i changed the plugs again and ill be damned if that s**t didnt work