Yasuni R restrictions

RAW · 08-08-2008, 05:35

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 · 08-08-2008, 11:20

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 · 13-08-2008, 08:24

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 · 14-08-2008, 06:43

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!

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

08-08-2008, 05:35	#1 (permalink)
RAW Registered User	Yasuni R restrictions 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

08-08-2008, 11:20	#2 (permalink)
xzburnoutzx Italjet Dragster	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. __________________ Italjet Dragster

13-08-2008, 08:24	#3 (permalink)
RAW Registered User	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

14-08-2008, 06:43	#4 (permalink)
RAW Registered User	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! Is it possible the restriction was so bad I need to up jet?