Please Help Urgent!!!??

[matesrates]

hI THere
I recently bought a new 80cc bike engine
It seems to be very jerky on take off
And low power bottom end
Goes good at top end speed

Please if anyone has any comments or advice?????

PLEASE HELP

 

[silverbear]

Sounds like a China Girl. My experience with them is they are jerky at very low speed, which is why I like the automatic centrifugal clutch so long as they work.
SB

 

[matesrates]

Sounds like a China Girl. My experience with them is they are jerky at very low speed, which is why I like the automatic centrifugal clutch so long as they work.
SB

YEh but i have owned a few of these china girls but none of them has run so badly
Its got no bottom end speed what so ever

What do you think i sould check?????

 

[Bikeguy Joe]

You may be just a little on the lean side.

 

[matesrates]

You may be just a little on the lean side.

What do you think i should do????
To make it richer by Moveing that little sirclip on needle up a notch???

Anything eles i should try???

 

[Bikeguy Joe]

No, move it DOWN one notch. Down will lift the needle, making it a little richer

 

[Bikeguy Joe]

Also, don't forget to check your plug after you get a little run time on it.

 

[matesrates]

No, move it DOWN one notch. Down will lift the needle, making it a little richer

I tryed moving it down 2 notch's not much differance

In morning i will try to move it back up one notch

Anything eles i could look at????

 

[matesrates]

All fixed ended up being the spark plug was only finger tight
Tighten the sparky and going good