The bike has always been quite firey, just wondered if anybody had ever tryed to improve trottle response. Carb has MainJet122, D 36 NEEDLE( in second from bottom notch), 60 choke jet, k 270 tube and 34pilot jet. Any suggestions welcome.

If the bike revs clean, idles fine and doesn't knock or ping then leave the carb alone.

Where are you having problems? Is it when riding really slowly and the bike is jerky of the throttle?

A slow action throttle and some practice in throtle control and learning to ride on the clutch more is all thats needed.

If it's a handfull at the top end of the revs try lifting the needle 1 notch to richen it up a bit but it may limit the top end rev range.

You can try flywheel weights, spacers etc but they don't compensate for poor technique!

Ride another 250 or get another 250 owner to ride yours just incase you have a carb problem.

The delorto carb is an excellent carb and if jetted right and clean don't mess with it.

You don't want the nightmares us lot have with the Keihin carbs !!!

I have run the boyesen dual stage reeds in most my Shercos. Tend to smooth things out off the bottom end and do not break the bank. I will usually run a bit larger pilot jet to 36-38 range on our fuel, yhen lean the fuel trim screw down to 2.5 or so range which normally gives a smooth transition off idle. Your mileage may vary!

can someone explain what all these settings for the carb are and how you go about doing it?

I have run the boyesen dual stage reeds in most my Shercos. Tend to smooth things out off the bottom end and do not break the bank. I will usually run a bit larger pilot jet to 36-38 range on our fuel, yhen lean the fuel trim screw down to 2.5 or so range which normally gives a smooth transition off idle. Your mileage may vary!

Copemech, are these the reeds you use? http://boyesen.com/power-reeds-360.html

That's the ones!