catalytic exhaust.changed subject look

[-Ali-]

hi, my zip has a catalytic exhaust but if i replace it with a derestricted non catalytic exhaust will it be alright, as the reacing exhaust don't use a catalyst n work so would i just put it on a up jet the carb like a norm exhaust.

also will the exhaust from a typhoon fit my zip. its a 51 zip

https://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&category=25640&item=7979994590&rd=1

that is the typhoon exhaust

[Kickstart]

Hi

You probably will need to play around with the jetting just from going for a different exhaust. However it might well run a touch richer than it needs to get the cat to work.

Dumping the cat should not cause any real problems (beyond a load of extra pollution).

All the best

Keith
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Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing

[Kye]

Go up to a 60 main jet, but you might as well just buy a race pipe like a Gianelli or a Hebo, since swapping to a non cat exhuast makes fuck all difference, even just cutting the little pipe on the normal ones doesn't make much/any difference. We've tried all sorts in the workshop and the best 2 reasonably priced for performance pipes we've found are the Gianelli Reverse and the Hebo nickel plated.
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Ducati 600SS
Vespa PX125

[-Ali-]

kye, i don't want a racing exhasut because i only have a couple on months left till i'm 17 so going to upgrade, so there's no point fiddling with the exhaust, so shall i just take the washer out and leave it