Yasuni R restrictions

[RAW]

Brought up before has anyone found different restrictions if so were were they located.

Asking because with my mods I am not happy with the Yasuni R and wondering why?

With a Malossi 70cc on the street but long stretch roads I thought it would pull harder.
May be time to order the C 16

 

[xzburnoutzx]

There is a big washer in the manifold (the connection where the pipe connects to the cylinder) and also inside the silencer, there is a "torpedo". A tube with small cuts inside the original tube where the gases go.

 

[RAW]

Well I got out the one in the muffler I will post a few pictures tomorrow.

Now I will pull it off and check the inlet to the pipe.
Thanks so far the big restriction in the muffler was not hard to remove using a bench grinder to grind the welds.A little tricky putting the muffler back together with the o rings wanting to do the jig.But got it assembled.What a difference.

Thanks

 

[RAW]

OK pulled out the restrictor! Fired it out the door today and going for a boot.

NOT
Now it falls flat on its face about 1/4 throttle!8P

Is it possible the restriction was so bad I need to up jet?