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| craigT19 |
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 craigT19 Jolly Green Giant

Joined: 09 Feb 2002 Karma :  
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 Posted: 20:52 - 08 Jun 2005 Post subject: Important mot update |
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Hey guys just thought i would let u know that as of now mot 'ers' have been instructed to ignore bs kite marks on exhaust pipes.
It is now at the testers descretion to fail u if he "belives" your bike to be louder than stock.
This is to crack down on fake bs tags and road legal cans with the baffles removed etc.
Within the next 4 weeks we have been told to expect a new noise tester in dB's along with a list of bike modules etc... if it reads more than 5 db's over what the manufacturer claims at 7k rpm we have to fail it.
You have been warned  ____________________ Bikes owned :- 2001 nsr125, 1999 zx6r, 2006 yzf-r1, 2009 xmax 250, 2012 yzf-r1, 2015 MT-07
Current bike : - 2016 MT-10
BCF member pops. sadly missed 1945-2003 |
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| mchaggis |
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 mchaggis World Chat Champion

Joined: 10 May 2004 Karma :    
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 Posted: 20:57 - 08 Jun 2005 Post subject: |
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I take it you are given a suitably damped and soundproofed room to test in? Echoes from a confined space will ramp up the dBA level on a can rather a lot. If it's just done in the yard, or even worse in the workshop, you'll be getting rather high readings.
Two problems though.
What if an untouched manufacturers can fails?
What if you can't get information from the manufacturer about how loud it is supposed to be?
Thanks for the update though.  ____________________ I must not be a troll...
Mmmm, Guinness
Discovering the delights of Hammerite and a 3/4" brush.  |
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| craigT19 |
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 craigT19 Jolly Green Giant

Joined: 09 Feb 2002 Karma :  
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 Posted: 21:01 - 08 Jun 2005 Post subject: |
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no idea mate, the sound tool fits over the end of the can, so echos shouldnt be a problem.
All cans are tested b4 put on bikes so failiure shouldnt be a problem... i think the 5db over rule is there due to possible baffle wear ect but if it does fail then its illegal anyways, in warrenty...then its a manufactuing issue.
out of warrenty? better get on ebay  ____________________ Bikes owned :- 2001 nsr125, 1999 zx6r, 2006 yzf-r1, 2009 xmax 250, 2012 yzf-r1, 2015 MT-07
Current bike : - 2016 MT-10
BCF member pops. sadly missed 1945-2003 |
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| mchaggis |
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 mchaggis World Chat Champion

Joined: 10 May 2004 Karma :    
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 Posted: 21:04 - 08 Jun 2005 Post subject: |
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I just see potential fun trying to get any sort of meaningful noise emissions data out of the Hongdou Motor Corporation for my bike, ignoring the fact that it's far too loud for a normal 125 single.  ____________________ I must not be a troll...
Mmmm, Guinness
Discovering the delights of Hammerite and a 3/4" brush.  |
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| lilredmachine |
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 lilredmachine World Chat Champion

Joined: 24 Jan 2005 Karma :   
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 Posted: 21:05 - 08 Jun 2005 Post subject: |
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Ditto with the MZ. It's the damn loudest 125 4t I've ever heard. Not as loud as when I get the race can though  ____________________ Bikes: too many, too much for one man to maintain anyway. |
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| instigator |
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 instigator Super Spammer

Joined: 19 Oct 2004 Karma :   
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 Posted: 21:26 - 08 Jun 2005 Post subject: |
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Which is why I think, for bikes used on the road, exhausts with removeable baffles are a sensible purchase.  |
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| numark1 |
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 numark1 Scared of girls

Joined: 10 May 2004 Karma :     
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 Posted: 21:59 - 08 Jun 2005 Post subject: |
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Looks like i'll have to slip the "normal can" on for the test then.
Cheers for the heads up.  |
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| pipnet11 |
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 pipnet11 Brolly Dolly

Joined: 17 Sep 2004 Karma :  
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 Posted: 22:39 - 08 Jun 2005 Post subject: |
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My MOT guy is nearly deaf He used to race classic bikes with almost open pipes on them, so he isnt going to fail mine. Which is good cos theres nothing like a kite mark on my new silencer. ____________________ I love the girls that do, I hate the girls that dont, I hate the girls who say they will and then they say they wont, but the girl I like most of all and I think youll say Im right, is the girl who says she never has but looks as though she might. - Max Bygraves |
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| iCraig |
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 iCraig World Chat Champion
Joined: 05 Jun 2004 Karma :     
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| mattsmith95 |
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 mattsmith95 Traffic Copper
Joined: 03 Oct 2004 Karma :     
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 Posted: 23:02 - 08 Jun 2005 Post subject: |
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My mechanic was telling me that when he MOT's a bike it's down to the sound of the pipes.
BTW, The price of an MOT is due to rise to £26 soon.  |
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| VFR400UK |
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 VFR400UK Scooby Slapper
Joined: 29 Jun 2004 Karma :     
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 Posted: 00:04 - 09 Jun 2005 Post subject: |
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Tie a shoe lace around a sponge and shove it down the end of the exhaust. It might not run too well nor sound too pretty but it should get it through the test and is easy to remove after  |
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| Dam_buster |
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 Dam_buster Crazy Courier

Joined: 23 Sep 2004 Karma :   
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| stinkwheel |
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 stinkwheel Bovine Proctologist

Joined: 12 Jul 2004 Karma :    
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 Posted: 02:06 - 09 Jun 2005 Post subject: |
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Looks like we are back to shoving scouring pads up the exhaust for the MOT then
Interesting factoid. If you take the end off a race can that is held together with allen bolts, a coke tin slides up in there nicely. On a bigger bike, a couple of miles sees said tin shredded to bits and spat out. Used to be quite a common dodge to get track day bikes through scruitineering with a rediculously loud exhaust on tracks with a noise limit. ____________________ “Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles. |
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| CBRnick |
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 CBRnick Borekit Bruiser
Joined: 12 Oct 2004 Karma :    
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 Posted: 12:03 - 09 Jun 2005 Post subject: Re: Important mot update |
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| craigT19 wrote: | Hey guys just thought i would let u know that as of now mot 'ers' have been instructed to ignore bs kite marks on exhaust pipes. | Err, no.
The rules for the MOT were changed in April 2002, so your just three and a half years late with this breaking news on the 'important update'.
Good going bullet...
| craigT19 wrote: | This is to crack down on fake bs tags and road legal cans with the baffles removed etc. | No again. Its to bring the MOT rules in line with Europe. The change came in April 2002 as a result of a rule made in Brussels.
| craigT19 wrote: | Within the next 4 weeks we have been told to expect a new noise tester in dB's along with a list of bike modules etc... if it reads more than 5 db's over what the manufacturer claims at 7k rpm we have to fail it. | 'We have been told' ?
Are you an MOT tester? If you are then please tell me where you work and Ill avoid the place. You clearly dont know what your saying and your handbook is going on four years out of date, during which time there have been a lot of changes.
If you dont even know that the MOT rules have changed, how the hell have you been giving MOT's for the last three and a half years.
There is NO specific decibel limit in an MOT, and also that is not how a decibel test is done. The test you describe would not be a legal test.
An legal decibel test is done as a rolling drive past test and the rev should be at 2/3rd of the engines rev range.
There has to be a minimum of 3(I think its 3, its a while since I read the regs) cubic metres in all directions of clear space around the vehicle for the entire duration of the roll past.
There is a lot more rules than that, but thats the basis of it.
I cant think of many MOT stations that have the space or the facilities to do legal Db tests.
The correct procedure for a Db test is laid out in Construction and Use regulations.
If you got prosecuted under construction and use regs and the Db test was done the way you suggest, the case would not stand in a court of law.
| craigT19 wrote: | You have been warned  | Thanks, maybe you should put facts in your warning
For the record, sinse April 2002, the MOT testers handbook has stated:
- An exhaust must be in good working order with no rust patches or leaks.
- It must NOT be marked 'Not for road use' or 'Track use only' or any similar mark.
- An exhaust must not be reasonably louder than a standard exhaust of the same age that is in good working order.
THat basicly makes it open to interpretation of the tester as to wether your can will pass an MOT or not.
There is no mention of a requirement for a kite mark or an EU stamp, therefore its not needed.
Its also worth noting, that if you get nicked for a loud can, the fact that the can passed an MOT is not a defense in court if it does not meet construction and use regs.
No more spreading false information please. |
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| Gracie Jones |
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 Gracie Jones Trackday Trickster

Joined: 31 Aug 2004 Karma :  
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| killa |
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 killa Won't Shut Up

Joined: 18 Oct 2004 Karma :  
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| Leggy_Girl |
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 Leggy_Girl World Chat Champion

Joined: 12 Apr 2004 Karma :  
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| Kickstart |
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 Kickstart The Oracle

Joined: 04 Feb 2002 Karma :     
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| R4nger |
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 R4nger World Chat Champion

Joined: 05 Jan 2005 Karma :     
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 Posted: 12:54 - 09 Jun 2005 Post subject: |
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And your being friendly?  |
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| CBRnick |
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 CBRnick Borekit Bruiser
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| Kickstart |
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 Kickstart The Oracle

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| CBRnick |
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 CBRnick Borekit Bruiser
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| Kickstart |
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 Kickstart The Oracle

Joined: 04 Feb 2002 Karma :     
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| craigT19 |
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 craigT19 Jolly Green Giant

Joined: 09 Feb 2002 Karma :  
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 Posted: 19:14 - 09 Jun 2005 Post subject: |
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<edited> cant be bothered to argue..
just trying to let poeple know that after market road legal cans / stock cans etc will now fail regardless of bs marks if the baffles are out etc
appologies for the rant guys, just been a nasty day trying a assemble a new addition to yamahas 125 range without an instruction book of any kind  ____________________ Bikes owned :- 2001 nsr125, 1999 zx6r, 2006 yzf-r1, 2009 xmax 250, 2012 yzf-r1, 2015 MT-07
Current bike : - 2016 MT-10
BCF member pops. sadly missed 1945-2003
Last edited by craigT19 on 19:26 - 09 Jun 2005; edited 3 times in total |
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| carvell |
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 carvell Scuttler

Joined: 05 Sep 2003 Karma :  
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Old Thread Alert!
The last post was made 21 years, 125 days ago. Instead of replying here, would creating a new thread be more useful? |
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