New exhaust newbie.

Hangear · Two Stroke Sniffer Joined: 16 Oct 2012 Karma :

Hi guys,
So I fitted an aftermarket exhaust to my Derbi Senda XTreme 50R. Those of you who have purchased a restricted Derbi Senda would know how STUPID the factory exhaust is...

Anyway I now have an exhaust very similar to this fitted...
https://www.tecnigas.com/o/model.php?codi=23&cat=7

It's a great exhaust and has already seen me accelerate much faster (better in traffic) and see a top speed of 40 (anything is better than the 32 it was at before). Problem is, i feel there is more power in it and without the choke on a bit, it struggles to get up to speed. I didn't change the jets from factory when I swapped the exhaust so I think thats the best place to start.

LONG STORY SHORT/tl;dr
Could anyone send me in the direction of getting new jets for my new exhaust? Very Happy

Cheers guys and gals Smile

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Sup

Hangear · Two Stroke Sniffer Joined: 16 Oct 2012 Karma :

shameful self bump Sad

any advice would be nice Smile

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Sup

at106 · Brolly Dolly Joined: 16 Jul 2011 Karma :

You will need to upjet by around 5 sizes if you don't the bike will run lean. Remove the spark plug and see what colour it is if its grey/white the bike is running lean you want the plug to be a toffee colour. You'll have to find out what size main jet your bike has as standard and then find more to fit Thumbs Up

Jets can be found here https://www.adrenalin-pedstop.co.uk/Products/List.aspx?page=3&CategoryID=5090

starkey · Derestricted Danger Joined: 25 Jul 2012 Karma :

what year is the bike?

would get a set of jets from adrenalin-pedstop from 75-85, running the bike with a performance pipe and a restricted jet won't be doing it any good.