THE BIKE IS RUNNING LEAN WHAT CAN I DO TO STOP THIS JUST PUT A NEW SPARK PLUG IN AND DID TO LAPS AT THE TRACK CAME BACK IN AND CHECK THE PLUG AND IT IS LEAN I ALSO WENT UP 2 JET SIZED TO A 182 AND THERE IS A AFTER MAEKET PIPE ON THE BIKE WHAT CAN I DO TO FIX THIS

I'm not sure what you mean when you say that you separated the carbs from the intakes. If you mean that you are now running the carbs open to the air, without having the air flow through the filters and airbox, and then into the carbs, then you could be running too lean.

One way to see if it's too lean is to do a plug check. While the best way is to run the bike hard in top gear, that's too difficult unless you're on a race track, so try this; Run the bike for awhile at the top of second or third gear somewhere that you can do it safely, and then disengage the clutch, get completely off the throttle and coast to a stop and turn the engine off quickly. Then pull one or more spark plugs and look at the electrode end, ideally with a small magnifying glass. You can also use the camera on your smartphone, zooming in and taking a photo.

If the plug looks a bit tan or toast colored, you're OK, but if it looks white-ish, then you're probably running too lean. Conversely, if it looks dark and even a bit wet, it's too rich. You should go through the whole process more than once, to get an average.

Check your spark plugs for damage at the electrodes; state of plug wires; coil and ground connections... Could also be lean air/fuel mix and/or low float level causing it to run lean.

BillFurr,
Could be a couple of things. One, could be the carbs allowing too much fuel or dumping fuel to the engine. This will cause the plug to load up and the bike to stall. Two, it could be a weak spark such as a bad plug, improper gap of plug etc. I would try some little things. First, I would get new plug(s) and ensure they are gaped to factory spec. If that does not help, I would have the carbs rebuilt and or the ignition of the bike checked out.

Good luck

First, you need a good battery. The bike does have electronic ignition. Soak the carbs in denatured alcohol for two hours after removing the float bowls, then clean with spray cleaner. Spray into every large and small hole you can find. Remove the rubber diaphragm from the center of carb prior to cleaning. New diaphragms are $196 each. Check all fuses. Put in new spark plugs, NGK-BP7ES. Clean the air filter. Get a can of spray starter fluid and spray on the air filter. The rubber mounts for the carbs are likely to be a problem once it gets running. It looks like they are still available at Babbitt's, $53 each. If un-carburetored air can get into the joints it will lean the fuel mix and cause uncontrollable high idle.

Before you sink a lot of money into the bike, check for spark. If spark is present, coast the bike down a good sized hill without any spark plugs being installed. Put the bike in 3rd gear as you go downhill then let the clutch out to turn the engine over. Now ( using the clutch lever ), shift through all the gears then neutral. If the bike will not shift properly it likely has a bent shift fork. I can't find any forks avaiable. With a bad tranny I would put it back in the dirt floor building and find a newer bike. Here is a link to Babbitt's. Please rate my answer. Thanks.
www.babbittsonline.com/pages/parts/viewbybrand/default.aspx

Is it getting too hot to run properly? Most air-cooled motors run plenty hot compared to their water cooled counterparts.

If you think the bike is running too hot because of running issues I would check the usual suspects. Timing, spark, fuel.

You will need a timing light and a clymer or factory manual if you got one with the bike. The spark plug just needs checking to see if its worn down causing its own issues with timing *(with the side benefit of seeing if the bike is running too lean. A bone white spark plug electrode tip cover=too lean)

This is to say that bad timing, widened/worn spark plug or lean fuel mix can all cause a bike to run hotter than normal. But they all usually come along with driveability issues as well.

So....check it out....be careful....and good luck!

You're on the right track by leaning out the mixture. The best way to see how close to optimum the mixtures are, is to look at the color of the spark plugs: white = too lean, black or dark brown = too rich, dark tan to light brown spark plug color = just right. For the most accurate reading, operate the engine in the throttle and RPM range that you wish to check, then shut the engine off immediately and coast to a stop (don't let it idle as this will throw off the spark plug color).

oK .single cable.One hitch on.One hitch off .Back to basics.Throttle is working.Carb is nice and smooth?Check electrics.Nothing has been bumped off.Check flow fuel from tank.Check spark at plug.Spark plus fuel.You should be running.If not.Come back.Hope this helps

firts check the spark plug by removing it and checking the color. if its white then its running lean. if its black its running to rich. most likely you will find it to be too lean. check fuel flow from tank to carb. if the flow is good remove carb and clean all jets and ports and replace it back on the bike. while youre at it check your air filter too. hope you get it going.