Upjetting necessary here?

shippy · Nova Slayer Joined: 10 Jan 2012 Karma :

Im looking at getting this new yasuni exhaust for my derbi senda x-race 50. On this website on similar exhausts it says the main jet will need to be changed but nothing about it on this product. I have emailed the company but still waiting for a reply.

So do i still need to upjet from standard with this exhaust

https://www.adrenalin-pedstop.co.uk/p/Yasuni_Cross_ML_exhaust_for_Aprilia_SX_Derbi_Senda_and_MH_Furia-3462.aspx

thanks

shippy · Nova Slayer Joined: 10 Jan 2012 Karma :

it also says it doesn't need any changes to the engine?

MarJay · But it's British! Joined: 15 Sep 2003 Karma :

I don't know for certain but my guess is yes.

If you want to change the performance of the bike then you'll more than likely need to change the jetting to suit.
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British beauty: Triumph Street Triple R; Loony stroker: KR1S; Track fun: GSXR750 L1; Commuter Missile: GSX-S1000F
Remember kids, bikes aren't like lego. You can't easily take a part from one bike and then fit it to another.