Derestricting Peugeot xps 50cc geared supermoto/moped

[Gregga]

hey

im 17 and looking to upgrade to a 125 very soon.

however im looking to fully derestric my current Peugeot xps 50cc geared supermoped/moped however im not to sure how to go about doing this.

do i need to upgrade to performance parts or can i just do a few tweaks here and there. it currenly only does 35 down hill.

any advice much welcome

cheers

G

[ian789]

Drive off the edge of a cliff.

[woll]

Not 100% sure on your exact bike (is it 2 stroke or 4 stroke) but i know the derbi senda has a restrictor in the zorst and the carb. You may find you need to upjet the bike when you do it.
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Current Bike- Suzuki DRZ400 SM K6
Previous bikes - Derbi Senda Xtreme50r, Honda CBR 125, Kawasaki ZZR 250, Yamaha DT125R, Suzuki Bandit 600, Gas gas ec 250, Honda CBR600FW
Damaged spleen, damaged kindey, 2 popped lungs, 2 broken ribs, broken face, broken wrist and 5 back fractures... remember kids walls hurt

[Tom C RX50]

pretty sure its a minarelli engine in the peugeot like the aprilia? may be wrong but id take off the exhaust and theres usually a washer just spot welded in the expansion chamber which comes out with the beat of a hammer, there may be a restrictor in the carb too, either in the inlet maifold or in the carb itself. failing this the cdi might also be restricted so a full power one of ebay would do the trick
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**FOR SALE** Aprilia RX50, full system gianelli exhaust, 70cc MK big bore, MK pro race filter, 20mm Dellorto carb, aftermarket sticker set, small plate, carbon look indicators, new rear tyre, years tax and mot, new chain and sprockets, very fast bike. 1200 ono **FOR SALE**

[Gregga]

Can anyone recomend a good performance exhaust to upgrade to. seen a few around at different prices but all seem to say the same thing..

p.s its a 2 stroke and i do believe its the engin as mentioned above


cheers

Greg

[woll]

IIRC on a 50 it doesn't make much difference on which exhaust you go for power wise that is. But you want one that will last and isn't going to rust easily (like DEP expansion chamber for DT125R) i'd say just read some reviews on them and pick which ever you want
____________________
Current Bike- Suzuki DRZ400 SM K6
Previous bikes - Derbi Senda Xtreme50r, Honda CBR 125, Kawasaki ZZR 250, Yamaha DT125R, Suzuki Bandit 600, Gas gas ec 250, Honda CBR600FW
Damaged spleen, damaged kindey, 2 popped lungs, 2 broken ribs, broken face, broken wrist and 5 back fractures... remember kids walls hurt

[Gregga]

do i need to fiddle with the jets atall with a new exhaust?

or anyother methods to get the best of the top speed?

cheers

G

[woll]

You may need to upjet it, i'd put the new zorst on and see how it runs to see if it runs ok and whether it will need the jets changed
____________________
Current Bike- Suzuki DRZ400 SM K6
Previous bikes - Derbi Senda Xtreme50r, Honda CBR 125, Kawasaki ZZR 250, Yamaha DT125R, Suzuki Bandit 600, Gas gas ec 250, Honda CBR600FW
Damaged spleen, damaged kindey, 2 popped lungs, 2 broken ribs, broken face, broken wrist and 5 back fractures... remember kids walls hurt

[Gregga]

how can i tell if they will need changing

[Gregga]

anyone know how to tell if it will need to be up jetted? any tell tail signs to look out for?

also performace air intakes and boost bottles, are they worth it? do they make a difference or do the just reuin the bike?

cheers

Greg

[TomDavies]

Hi, the general rule is if you change the exhaust you upjet the bike as exhaust gases are escaping quicker. Best thing to do is stick the pipe on (or de-restrict your current one) take it for a spin and see how it runs, you might not need to.

If you want more top speed you could go up a couple of teeth on the front sprocket.

''also performace air intakes and boost bottles, are they worth it? do they make a difference or do the just reuin the bike?''

And no I wouldn't waste your time, just upgrade to a 125 when you can/money permits.

HTH

Tom
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450 exc enduro
Lives in a lonely place near Nantwich, Cheshire

[dobby]

you will also need to change the gearing on it eg: 11/12t to a 15t front sprocket as if they are the same engine as the they are massivly down geared