Valve legnth

[dobbs2k]

Hey everyone, I'm new to the forum as well as being a scooter owner.
I just purchased a Chinese scooter with a 50cc, for my 5.5 mile commute to work and to put around Tampa.

My question is, how do I know if my scooter has 64mm or 69mm valves?

Also would a stiffer torque spring combined with clutch springs and lighter variator weights result in quicker acceleration times?

Thanks,
Blake.

p.s. I am a person with a small build (about 160lbs)

[Deleted]

the valve cover on a 69mm valve engine is taller than the 64mm. 69mm is also way less common. it would help to know the make.....or some pictures of it.


i would not change the springs....lighter weights alone help takeoff

[dobbs2k]

It is a Tao Tao VIP 50.

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[dobbs2k]

I'm planning on a 50mm BBK soon but until then I wanna mod the CVT for better drivability and performance.

[90GTVert]

:welcome:

Try adjusting roller weight before messing with everything.

[Deleted]

Jul 29, 2012 7:46:44 GMT -5 dobbs2k said:

It is a Tao Tao VIP 50.

63cc 44mm bore with 64mm valve length.

[dobbs2k]

How do you know its a 63cc? Do I have one of those secret 63cc?