my story...bought 78 pug 103 lvs-u3. what I've done -
got it running
made a fake air filter for the gurtner
gave up on trying to get the gurtner to work
ordered the dellorto sha party, installed, began tearing around the neighborhood
removed all the screens from the dellorto except big one and some scotchbrite pad
derusted the tank while waiting for the new carb
installed new petcock
installed new headlamp, got brake light, horn and tail light working
noticed mine ran well, idled well and hit about 30mph...decie to try and get more punch on the hills....
removed variator...removed 3 balls from clutch...take off improved just like everyone said...
removed stock weights from the variator and added the 5g malossi weights going from54g's total to 20g (climbed much better but lost my top end (not enough weight to throw the variator all the way out)...
spent the better part of a week trying to fashion some custom weights by melting down lead tire weights into 10 gram weights cast in a potato (yes, a potato)
gave up on my potato weights (pretty cool actually but getting the curvature just right so the variator would open and close fully was beyond my potato)...
drilled some weight off the stock variator actuator arms (the weighty things) and got them to about 42g...10 less than stock
regained my top speed but still can climb most hills (slowly...maybe 10-15mph)
downjetted cuz i'm a mile high...went from stock 68 in the dellorto to 62 jet
currently runing a top speed of 32 mph
on to do list -
replace the variator belt
trim the stock intake gaskets to fit the malossi 15mm intake
get a flywheel puller and set timing to different stuff and probably new points