What do you mean by!QUOT!clear out the engine!QUOT!?

Pick up the truck and rev it up to clear out the engine so it is not loaded up with fuel. Hit the brakes and then begin to count. the idle will drop off some but not die as Jadda describes.



-Do you refer to 'rich in the bottom' to the LSN being too unscrewed? too out? Unscrewed, counter clockwise, fat, rich...

LSN and HSN work the same way. the only difference is that the HSN adjusts mainly higher RMPS. it does effect lower rpm's in a small amount. LSN effects low RPM's...

When you lean out, turn clockwise, or tighten you take fuel away from the engine it it replaced by air....

When you fatten, turn counter clockwise, or screw out you add fuel to the engine and take away air.....

With more fuel also means more oil, this is why when you engine is too rich it stalls and doesn't run correctly.

With less fuel you engine runs hotter and in extreme cases runs out of fuel at high speeds.

You are looking for a good balance between lean and rich. most run their engines on the rich side to make the engine last longer.

You can use the listed above needle setting as a starting point if you choose to but be very careful you do not over heat your engine.

I race all over the U.S. and have rarely had me engine to run the same from one place to another.

Make very small adjustments at a time with an engine that is at temperature.

Think of the screw you are turning as an hour hand on a clock and make 1 hour adjustments at a time, run the car a little to allow the change to take place then readjust as needed..

This engine is a really good reliable engine once tuned properly.....

That you all for the input with his problem.