Don,
Does the bike have the stock 'carb' or aftermarket 'carbs'?
The original Weber is the first thing people remove from this bike and replace with (2) single carbs. The Weber was made for a 1200cc Fiat and is known to have a flat spot in the 3 - 4,000 rpm range. My guess is you still have that (1) carb.
Replace it with a set of 36mm Dellorto's and the bike will run much better.
Sounds like your bike has been sitting for a while.
Regarding the brakes ... replace the fluid and clean out the caliper and lines, an easy thing to do. Replacing the lines with braided always helps the feel, as does new pads.
The Clutch ... again if the bike has been sitting, it could have air in the system or fuild could be low. The system could be leaking and that could be from something being dryed out. This happened to me at the resevor on my 750 Sport.
Good luck,
Greg
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