off the line problem

[muhuha]

I had my bike previously set up fine, off the line i has small wheel lift this was running a 15% polini contra spring , 3gx6 rollers in the polini 9 roller vario and the clutch springs supplied. All of a sudden off the line is awful it lags for a time, it tries to get into the powerband but then clutch engages and it cant, is this because ive raised all the ports and the power ios at a higher rpm?


Can someone also tell me what a delta clutch is and what it does differently

 

[tiba_karotsu]

probably your carb is off, you need to adjust the jets or needle on the carb if you ported the cylinder.