Spark Plugs read and it is a mixed bag, any ideas ??

[valk2128]

I changed the spark plugs about 300 - 500  miles ago, so I decided to check them. 

number 1, 3, and 4 look a little lean.

number 2, 5, and 6 look good to a little rich.

There is  a noticable difference between the 2 sets of spark plugs.

The pilots are adjust to 1 3/4 with #38 slow jets.

If I remove a spark plug wire on any of the cylinders it affect the way the bike runs.

Bike idles fine at around 900 to 1000 rmps.

It accelerates good.

It will grunt if I am in 5th around 2200 (50 mph) and punch it, but it will take off.

Could it be value adjustment, carb sync ... ?

Any suggestions or ideas are welcome.

As always thanks for all your help.

[Robert]

I would say a carb sync and maybe see where the needles are at. If you really want to see the effect of either rich or lean and at what speed technically you have to use new plugs and stay in the rpm range you are trying to test and shut the bike down and coast to a stop and pull the plugs. You pretty much know the rpms you are generally at so that is more than likely the range to concentrate on. In general the needles for most circumstances will have the most effect.

[borat]

Is the bike stock?

If it is, and all other adjustments are good, maybe the fuel enrichening circuits on the rich side is not fully disengaging. 

My experience with CV carbs on other equipment (KLR650, two Suzuki 500cc ATVs) is that they come from the factory set very lean.   If your lean looking plugs are in the cylinders being fed by factory set carbs, chances are that's the way they should be.  I'd focus on the rich side to achieve balance. 

Either way, good luck.