Change from race/track exhaust to standard exhaust

[Rod66]

Hi I have got a pair of ART Racing exhaust, but want to put the standard exhaust back on the bike, will I need to do anything to bike or can I just put them on and go??
Regards
Rod

[Stratman]

Depends whether or not anything was done when the ART cans were put on re jetting etc.

[Rod66]

I have only just purchased the bike and I have got the original exhaust with it but these race cans are loud so i want to sell these ones and buy some road legal cans, Im gonna put the original ones back on until i have got some road legal cans, on the advert when I got bike it said :- The cans that are on it at the moment are a "1 of a kind" prototype from ART racing, there isn't another set the same.. The bike also has a k+n panel filter and a dynojet stage 1 jetting kit...
Will i be able to run road legal exhaust or do I need to make ajustments???

[agentpineapple]

i think your just better off putting the originals on your bike and seeing how it runs, take some pictures of your art cans and if needs be sell them on the forum or ebay and with the proceeds buy yourself a nice pair of aftermarket road legal cans, i'm sure the members on this forum will give you the heads up on whats a good quality exhaust.
as the lads have said if you can live with the noise, get the not for road use polished off and enjoy them.

[Wicky]

I've a similar set up with K&N and S1 dynojet except open micron open cans and have in the past fitted standard exhausts (+ a road legal set of quieter Micron cans) on for winter and to give my neighbours with a new born bambino some peace and quiet, and it ran okay - not that I was haring about as normal. It could be easier and cheaper to get some slip in baffles to tone it down to a level you find acceptable.

If you are intent to set it back to standard with standard (heavy) pipes you could get a few quid back on selling your cans and the K&N, which would help offset getting it rejected again to suit the more restrictive OEM set-up. As you'll IIRC be running a bit rich (better than too lean) which will probably lessen your MPG by a smidgen. Getting it back on a dyno would be the best way to get it optimised again after returning to standard.

Shame really as it probably cost a couple or three hundred quid (inc dyno time) to get it where it is now.

[Diabolus]

I think you should keep the cans on, the storm aint that loud. have you ever heard an MT-01 with race cans?? I have at Ace Cafe once, now that was loud. I find the storm only loud when accelerating, when cruising at 90mph on the dual carridgeway is a very enjoyable burbble (priceless sound) much quieter than my Gixer used to be screaming along. Thats my opinion but I dont know your circumstances fully, if I were using my bike for work (permenent nights) getting home around 6am I think I would upset alot of the neighbours even trying to be quiet on the bike.
I think the baffle idea is the best, a friend of mine uses wire to hold them inplace for quiet trackdays if you cant get a perfect fit from off the shelf ones (demon tweeks).

[youtube][/youtube]

Vid of street fightered MT-01, I think it has 'Dan moto gp cans' similar to the ones Muppet is selling.

You have to hear them in the flesh to understand how loud they really are, but vid give's an idea.

[tony.mon]

. I find the storm only loud when accelerating,

Yes, but you can balance the noise produced by fitting a crankcase breather, route the camcover breathers to an external breather, and fit a freer-flowing air filter.
Adding ram-air would also help, especially if the intakes were at the front of the bike, as they'll be heard by the rider, even at speed.


Doing all of this means that the bike will produce a more even sound level across all engine running conditions.

But you'll go deaf quicker.

[SneakyF]

I have just bought a set of Moto Arbo cans. off ebay.




I asked the guy if they were stamped not for road use, to whit he responded they wernt.
What he failed to tell me was they actually werent marked at all, not kite mark nothing.
Now reading the rules

The law says that your bike will fail the MOT if:-

a. Any part of the exhaust system is missing or excessively deteriorated.
b. A leak in an exhaust system which causes excessive noise to be emitted.
c. An exhaust system mounting missing or one which is in such a condition that it does not fully support the exhaust system.
d. silencer which is in such a condition or is of such a type that the noise emitted is clearly in excess of that which would be produced by a similar machine fitted with a standard silencer in average condition.
e. A silencer fitted to a motorcycle first used on or after 1 January 1985 which is not marked with either:-
* The make and type specified by the motorcycle manufacturer.
* British Standard classification BSAU 193 or BSAU 193a or an EEC approval number prefixed by a small 'e' marking or an ECE approval number prefixed by a capital E.
* A silencer marked 'NOT FOR ROAD USE', TRACK USE ONLY' or similar words.

Does this mean the cans are illegal?

PS does anyone have these fitted and if so whats the carb set up ? Any new needles reqd?

[tony.mon]

You're asking the wrong question.The question should be "will they pass the MOT test?"- answer, no.

However, are they illegal? Depends who pulls you.

Your vehicle must pass an annual MOT inspection after it's 3 years old.

But in between you can change anything you like, and it'll be down to a police ossifer to prove that it's not in compliance with the law.

They can seize your bike and subject it to a noise test, but these are very detailed, (therefore time-consuming), not every force has a properly-calibrated noise gun or a testing site to carry out the test, and if there's no markings, just say that the bike came with them and they've passed every MOT with them on, so you thought they were ok.
Say you always wear ear plugs anyway, for helmet wind noise reasons.
The ossifer can't prove they weren't on when you were last tested, and in the absence of obvious damage, sawn-off end cans etc, they'll probably let it go.

Of course, if you're revving it off the limiter in the high street on a Saturday afternoon, then you're asking for it.