Yasuni R.07 Exhaust

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czechojo
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Posts: 20
Joined: Sat Aug 04, 2018 10:26 am
Location: Durham, nc

Yasuni R.07 Exhaust

Post by czechojo »

anyone have experience with this exhaust? how to derestrict inside with dremmel? did it require modification to fit properly? jetting suggestions?
2016 Genuine Roughhouse Sport, malossi 70cc cylinder kit , Yasuni R.07 exhaust, dellorto 19 carb, carbon reeds, doppler air filter, Athena Cranshaft, Polini 14/41 Secondary gear, Malossi Multivar, Malossi Delta Clutch, Malossi Special X Belt, 5g rollers
lovemysan
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Posts: 660
Joined: Sun Jan 15, 2012 2:55 am
Location: kansas city mo

Post by lovemysan »

Thats a great question for the scooter swap shop guys
161cc big bore kit, NCY big valve head Hand ported, NCY transmission kit, jetted and tuned. I can port your cylinder head.
Schlappy
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Joined: Tue Jun 22, 2021 11:45 pm

Re: Yasuni R.07 Exhaust

Post by Schlappy »

My Yasuni Z did have a restrictor in the end that connects to the cylinder. I carefully drilled and dremel it out then smoothed out any rough edges. Mine came with a silencer but I've seen separately sold silencers with restrictors as well so keep that in mind. Other than that no further modding to fit was needed it came with everything. Bikes will vary so research until you're blue in the face and then research some more.
Definitely up jet. Definitely.
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