End cans on a restricted bike..

[Rncv]

Hi guys,

Yesterday night i was driving home and was pulled over by the police. Apparently there was a different bike messing about and they thought it was me, fair enough.

Anyways, they did all the paperwork checks and inspected the vehicle and said to me that my end can was illegal. I have a viper end can, it has no markings on it apart from the normal "viper" so i get a 30 quid fine...

Also the guy said to me that it affects the restriction?... and that the bike could well be over 33BHP..

I just spent over 600 quid getting the bike sorted out, which included fitting the down pipes and end can (i gave them both the viper and a standard can) and they said nothing to me about the viper can effecting the restriction...

So can anyone help here? if they know anything about it.

All the best,

Rob.
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Current: 01' Bandit 600, 92' Goose 350
Previous: Lots!

[grant965]

I think that is complete BS, for an end can to be illegal in the UK it has to be stamped 'race use only' or 'not for road use'. They no longer have to be stamped with standards, BSAU or something similar ???
Also, am i right in thinking that your bike could actually been down on power if its a straight swap because you may need to adjust the mixture? Either way Id ask for proof.
Grant
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Ex bikes: 05 Suzuki En 125, '98 Yamaha Thundercat, '08 Honda cbr125, '05 Kawasaki z750, '03 Triumph Daytona 600, '91 Kawasaki ex250, '03 Hyosung Comet 125
Current Bike: '02 Suzuki TL1000R

[Rncv]

I thought the same, that all race cans are marked. Although I'm unsure about having a BSAU stamp.

Even if its restricted it shouldn't make a difference? there restriction is in the carbs so will only allow 33bhp regardless of the end can?

it was a black road traffic car, so couldn't they have seized the bike if they thought it wasn't restricted to 33bhp and thought it was slightly more?

Rob.
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Current: 01' Bandit 600, 92' Goose 350
Previous: Lots!

[lihp]

It is possible that the new system could give you a couple of bhp. And if the restriction was done on a dyno to 33 then you changed system. Especially the manifold then it could be 1 or 2 over.

This is unlikely but is possible.

As for the end can, I believe it does need the bs number stamped on it, I'd contact viper and ask if its a road legal exhaust. If they say it us, then contest the fine.

[Rncv]

The restriction was done by a garage, hasn't been on a dyno.

the down pipes are also stainless ones, whether that makes a difference too?

I'll see if i can find out where the nearest dyno center is and get it booked in.
____________________
Current: 01' Bandit 600, 92' Goose 350
Previous: Lots!

[P.addy]

Managed to get friends GSXR750WN restricted to 33hp, had it dyno'd...was well about 33hp. Had full stainless D&D exhaust and a different filter, so it could be over

Unlikely though, what is it?

[Rncv]

[Rogerborg]

Sorry, VCA reckon that C&U requires a "e" or "E" mark, BS AU mark or "equivalent international standard marking".

An unscrupulous owner might just stamp "e13" or similar on a race exhaust, since the mark is what matters. It was on there when I bought the bike, officer.

About the restriction, it's up to them to prove that it's over 25kW, not for you to prove that it's not.

Pay for a dyno run if you want, but all that will give you is an estimate of crank power. If Plod do make an issue of it (sounds like they didn't really care) then their estimate may be wildly different anyway.

All that said, WTF are you doing spending money pimping a restricted bike? Have you told your insurer about your "go louder" exhaust?
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Biking is 1/20th as dangerous as horse riding.
GONE: HN125-8, LF-250B, GPz 305, GPZ 500S, Burgman 400 // RIDING: F650GS (800 twin), Royal Enfield Bullet Electra 500 AVL, Ninja 250R because racebike

[Amreet]

Yes an aftermarket exhaust kit could well lean out the engine a bit giving a couple more BHP and that is actually a reasonable assumption of the officer,

Did the garage do the pipe and the restriction at the same time? were they the same people?

If it was different people/different time then in fairness it is your responsibility to check otherwise, if you've still got the bike I would do something now,
If the garage did both jobs with the same people at the same time get back there and check they took the exhaust into consideration,


It may be worth getting it dynoed, doesn't cost the earth and it's peace of mind PLUS something to tell the police to bugger off with,

If it is over 33bhp then you could either look at up-jetting to bring the power down or put the original exhaust system back on for the rest of the restriction period, keeping your new system nice and fresh in the garage and then treat yourself to a derestriced AND nicer sounding bike when the time is up

[P.addy]

Sorry, spastic moment.

Was ABOVE 33hp...by a considerable amount. 8hp at the wheel

[Rncv]

[Rogerborg]

[P.addy]

[Rncv]

So all in all,

Restricting a bike is more hassle than its worth.

its better to get a sub 33bhp standard plod along, Which is still a big step up from your average 125.

Rob.
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Current: 01' Bandit 600, 92' Goose 350
Previous: Lots!

[rac3r]

My Monster 620 was restricted and had 'race use only' Termi's on it
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Bikes : 2006 CBR125R - 2004 Monster 620ie - 2004 ZX-6R B1H - 2005 Monster S2R 800 - 2011 Street Triple - 2009 Streetfighter 1098 - 2014 ZX-6R 636

[Rogerborg]

[Kickstart]

Hi

Possible that the can and / or down pipes could result in the bike putting out more power than it is meant to when restricted. Also possible it is putting out less power (some down pipes are pretty poor).

However a good chance the difference will be small. And given that the restriction law likely means a 25kW limit at the crank and that a typical dyno is only going to give a rear wheel figure it is fairly likely that the difference is within the margin of error of guessing the crank power from the rear wheel figure.

[Rogerborg]

[G]

[Kickstart]

[sickpup]

[Moxey]

[Kickstart]

[Moxey]

^Damn

though I am left curious about this, shall not be altered so as to increase the noise made by the escape of exhaust gases.

Is this noise increased from the levels produced by the original OEM system? (do the police have a database containing the required DB level of the original by which to measure an aftermarket system?)

Guessing the onus is on the manufacturer of an aftermarket system or end can to be quieter than the OEM exhaust system which is the measure of such.
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Current: 02 FZS 1000 & 91 Royal Enfield Bullet 350 Some Bike Pics...
'I was too busy paying attention to pay attention'

[Kickstart]

Hi

Very much doubt the police have such a database. And never heard of them pursuing anyone on a bike under that rule (they have tried it for cars, trying to prosecute people for using the standard exhaust from a sportier model of the same car).

Given noise tests are complicated to do properly it would probably get messy.

All the best

Keith
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