2019 Tao Tao lancer 150 correct idle RPM

[chinochung]

Hey everybody. What's the correct RPMs for the scooter from the title. Mine used to die when I started it cold so I bump the RPMs to 1800 or maybe 2000 but the weird thing is that when I start it, the RPMs just to almost 4000. Then after warm up, the RPMs go from 2000 to 3500 back to 2000 randomly. Could it be a vacuum leak somewhere? Even on a brand new scooter?

I have been thinking on bringing the RPMs back to what it was when I first got it and just deal with it shutting off until it warms up.

Another thing. I could swear that somehow my top end speed went down from 60MPH to 55MPH after I up the RPMs. Could it be possible?

TIA

[90GTVert]

1500-2000RPM is the typical range. If it's surging, I think you're on the right track if you check for intake/vacuum leaks.

Adjusting the idle speed screw should not affect top speed.

[chinochung]

Apr 15, 2019 15:44:47 GMT -5 90GTVert said:

1500-2000RPM is the typical range. If it's surging, I think you're on the right track if you check for intake/vacuum leaks.

Adjusting the idle speed screw should not affect top speed.

Thank you