I have a 2001 elite 50mm rumia bore, upgraded oko carb and vari with 10gram rollers
Ct intake and 9.1 gears running 46.7mpg I gps'ed today ist that slow fir my set up running
48-piolte and 120-main jets in carb what's wrong I should be closer to 55mph right
The right carburetor jets depend on the carb size. Other than "OKO", your post doesn't say which sizeyou have. Also I'm in the dark as to the exhaust. That too will determine optimal jetting.
Presuming the engine power is decent, your issue might be with the 60-gram variator load. Stock was 8.5 on the 2001 SR, and even that keeps the stock engine strangled below its best power.
Consider lightening up those rollers. The well-tuned 50mm bore is capable of 55 with those gears.
Wheelman-111
Most of my money is spent on scooterparts. The rest is just wasted.
"ISO": '03 Vespa ET4 Malossi187 74MPH
Flash 9: 2001 Elite SR Contesta 72 ZX Tran, 9:1 Gears, Stock Airbox/Carb/Pipe 58.8 MPH
Punkin: 2010 Vespa/Malossi S78, 61MPH
Ok thanks For all the info I will lower the wieghts and I have a v8 28mm pipe I think it's a 28..... Also my carb is a 24mm oko! Out to lower wieghts and test drive!!
Jetting may be pretty good for a 24. Double-check with temperature readings and/or plug reads. Cardboard color = Good.
Wheelman-111
Most of my money is spent on scooterparts. The rest is just wasted.
"ISO": '03 Vespa ET4 Malossi187 74MPH
Flash 9: 2001 Elite SR Contesta 72 ZX Tran, 9:1 Gears, Stock Airbox/Carb/Pipe 58.8 MPH
Punkin: 2010 Vespa/Malossi S78, 61MPH
Ok vari with wieghts and the round cylinder that goes inside vari to turn belt is 290grams
The wieghts alone are 9grams each times 6 equals 55grams..... Putting back on and soon
To be headed out
Forgot to axt you what center spring you're running. That of course will help determine optimal roller weight.
Wheelman-111
Most of my money is spent on scooterparts. The rest is just wasted.
"ISO": '03 Vespa ET4 Malossi187 74MPH
Flash 9: 2001 Elite SR Contesta 72 ZX Tran, 9:1 Gears, Stock Airbox/Carb/Pipe 58.8 MPH
Punkin: 2010 Vespa/Malossi S78, 61MPH
YES!! they are 9:1 I'm positive but the bore trys to speed up and kind surges but then goes back to 45ish..... I have recently upgraded belt to 17mm belt about 100miles ago
17mm belt? What length? Malossi made a Derbi/Suzuki 16 that worked pretty well with a thin shim, but changing belt dimensions requires other changes.
Stock length is 641 and width is 15.5. A ZX pulley needs 654 or 669 x 18. If your 17 is too wide for the pulleys or the wrong length, it's not an "upgrade".
Try a stock belt and see?
Wheelman-111
Most of my money is spent on scooterparts. The rest is just wasted.
"ISO": '03 Vespa ET4 Malossi187 74MPH
Flash 9: 2001 Elite SR Contesta 72 ZX Tran, 9:1 Gears, Stock Airbox/Carb/Pipe 58.8 MPH
Punkin: 2010 Vespa/Malossi S78, 61MPH