Update... so after being told to change the jet I have done so with a 45 and new spark plugs . .I will check the plugs after 50 miles and see how they look . how many turns out on the mixture screw do you think i should do ?

 

One and a half turns out is a good place to start with the mixture screw.

 

With your mixture screw 1 1/2 turns out as suggested above....

From the CV Performance tuning guide:

"With the engine warmed up and at idle you may now fine tune the idle mixture screw for optimal performance. Acquaint yourself with the adjustment screw location at the bottom rear of the carburetor prior to running the engine. You will need a small screw driver for adjusting the screw. With the engine idling slow (no more than 900 rpm), turn the screw inward (clockwise) SLOWLY until the engine starts to stumble. You are working with the screw upside down so check to make sure you are turning the screw clockwise or inward. Note that not all engines will stumble or have an RPM change that is noticeable when twisting in the mixture screw. This can be due to the idle jet being too large, installed cams, or ignition systems such as those on Twin Cam 88's. If unable to find the low adjustment point where the idle slows, simply set the screw at 1-3/4 turns out and proceed to the next step.

If the engine will not idle on its own during this procedure, adjust the idle set screw on the throttle side of the carburetor until it idles correctly. Now turn the mixture screw outwards (counter-clockwise) until the engine begins to run smoothly, then add 1/8 of a turn. Maintain proper idle speed and repeat the adjustment each time you adjust the idle speed. Blip the throttle a couple of times and observe the results. If the engine responds quickly with a smooth blast and no backfiring through the carburetor, you have your idle mixture right. If a hesitation occurs then adjust the idle mixture screw out another 1/8 turn. Normally, the mixture screw should only require 2 to 3 turns out from gently seated. Anything above 4 turns indicates the pilot jet is too small."

 

Update....After putting in 45 jet my mileage increased to about 105 miles before having to switch over to reserve tank . The plugs look much better after 100 miles than before.. My last problem is a vibration that has been there for awhile in the front fork area and more noticeable when I have the detachable windshield on. I checked the front rubber motor mount which seems ok. It is very irritating but just cant figure what is causing the vibration more prominent at lower rpms. Anybody with a Dyna that has had this problem ? i talked to someone who had a Dyna and this problem and he changed different things like new shocks and the front wheel and he never figured it out and eventually sold the bike.

 

Check the preload setting on the fork stem. Better yet replace the bearings then set it up.

 

1- Steering neck bearings
2- Motor mounts
3- Wheel/swingarm alignment
4- Swingarm bushing/bearing
5- Warped rotor

 

Make sure the enrichener is closing completely when you push the choke **** in.

 

Both of these.

 

After taking the advice of most I changed my jet from 48 to 45 and this is what my plug looks like after about 150 miles. Does this plug look like it should and if not what is the problem ? I went through the whole carb and cleaned it changed spark plug wires.

 

Carb?