Ok, Guys I got some questions. First, so there is no questions about the condition of my Mo, I am the origional owner and I treat it good and maintain it regularly. But, it has a shifting problem. When you shift from neutral the bike jumps a little, then when moving, it is hard to shift gears (Meaning, sometimes I lift the shifter and nothing happens). I checked The clutch and found that one of the drive plates was warped. I replaced all of the friction disks and drive plates with a Barnett Dirt Digger clutch and stronger clutch springs (figuring that was the only problem). As you can probably guess it wasn't. No matter how I adjust the clutch the bike still has the same symptoms. What could it be? I have a repair manual and checked everything that they say to check and everything looks fine.

Next, I have modified the motor a little. I added a Clamp On K&N, Jet Kit, WebCams All Around cams (Made A Huge Difference), Custom Made 1 3/8 " Header, and FmF Exaust with all the plates on it. I am having a little trouble tuning the jet. I am at about 300 ft above sea level. I used a 134 jet first with the needle on the 3rd groove (like the directions said). The bike had good high end but bogged low end. So i changed to a 130 jet. Now the bike seems to have better high end then with the 134 but the low end still bogs (I think it is too rich low end). I work in an import performance shop where I tune turbo hondas, toyotas, and mitsubishis all day long, but I just can't get a basic motorcycle carb tuned (Very Pissed Off). I think it is probably becuse i dont have a complete understanding of how it works. What does adjusting the length of the needle do? When you make it shorter what happens? When you make it longer what happens?

I welcome all suggestions, I will try anything!

 

I think you can fix your shifting problem by installing a new shift star and fork. Kawi part #s
13145-1061 and 13165-1034 replace them no matter how good they look, I have fixed several Mos with this problem and these parts have done the job every time. Be sure to also buy a new side cover gasket.

As for the needle. Lowering the needle (raising clip) will lean the mixture in the mid throttle positions. And viceversa. If you think you are jetted right for WOT and are bogging at the bottom from being a little rich try raising the clip a notch.

 

On bikes it also helps to polish the shift star. The low end bog could also be associated with the pilot jet. This controls up to 1/4 throttle along with the air screw. Get your engine up to opperating temp and then adjust your air screw until it idles the highest. Count how many turns from full in it took to get there. If it's more than 2.5-3 turns it wouldn't hurt to go to a leaner (numericly lower) pilot jet. After changing the pilot (if this is the case) repeat the process. After adjusting the air screw then adjust your idle speed.