Exhaust Rattle and blowing + Maintenance course

[HJFazer]

HI,


As the subject, my exhaust has been blowing slightly more than usual out the bottom out of the exhaust end can. I have an original exhaust and until recently have had no issues. I noticed whilst cleaning the winter crap of it that there was a bit of a grinding noise from the end of the end can (as it moved while cleaning it) and since then it;s been blowing and then this rattle appeared yesterday.


I'm very much a mechanical newbie (embarrassingly so) but I really don't want to pay a garage to fix it if it's something I can do myself. I've just had to pay out for some service work and if I'm honest I can't really afford to keep going back.


My questions are, 1) what is it likely to be? I think it's probably something to do with the joint between the end can and the pipe but don't really know what having never taken an exhaust apart before.


2) How likely is it I could repair it myself?


If anyone has any ideas, or happens to be near South West London and fancies having a look (cheeky, I know) I'd be really grateful.


Finally, does anyone know of a good general maintenance course worth taking for a newbie like myself? I'd like to think I'm pretty intelligent but I'll admit that my skills are currently not mechanical


Cheers

HJR

[Dead Eye]

As a guess I'd suggest the gasket is failing between the can and the connection to the pipes / headers. Its not an expensive part and is really easy to check - remove the can is very simple and easy to do, especially with the OEM can. Only the OEM cans seem to have this gasket, all aftermarket systems just use tight fitting metal pipes and a clamp.

[Paul]

Do you mean the silencer part of the exhaust system?


If gas is coming out where the grey pipe goes into the stainless end can (it's all one piece), then it sounds like what happened to mine.


It may be that the exhaust gas condensate has corroded the inside of the silencer.


To be fair I never cut mine up to confirm it, I just put another end can on the bike.

[HJFazer]

Hi Dead Eye,

In terms of taking the can off, is it simply a case of undoing the exhaust hanger and pulling it off? I can't see anything else that would need loosing (i really am a full on newbie to this stuff)

If it is the gasket will it be obvious to see?

Cheers

[Jamieg285]

There'll be two bolts to get the end can off. One on the hanger as you have already stated, and then another at the front end of the link pipe, as a band clamp. You'll need to bend down and look under the bike to see it.  I'm not sure if it's a fixed fitting on the standard can or loose, so may be at an odd angle.  You only need to loosen the front one a few turns to loosen the band, not remove it completely. With that done, twisting the end can back and forth will help it slide off.

[Jamieg285]

Didn't see the bit about the gasket.


Look here http://www.yamahamotorcyclespares.co.uk/...aust?uid=0


It's item #7. If it is faulty, there is likely to be bits missing, or maybe not there at all?  You can also see the location of that front bolt.

[Dead Eye]

HJFazer - Do as Jamieg285 has posted in regards to remove the can. The gasket is a sort of wire mesh if I remember correctly and it should be obvious. It will most likely be stuck on the inside of the pipe on the can end. This is all a bit of assumption and based on what you said in your original post but it won't hurt to check it out - if its a really loose fit this will probably explain the grinding you noticed.

To clarify, can you describe exactly where the exhaust is blowing from? Photos if available would be ideal

[HJFazer]

Hi,


I'm hoping this link will work. if so it should show where the blowing, grinding and rattle seem to be coming from:


http://screencast.com/t/xO05ZWGn


Cheers for the help people,


HJR

[Dead Eye]

Ah, if its blowing and rattling from there then it won't be the gasket as that is further down the pipe...

I would guess that you may have the same issue as Paul mentioned above. There may be some lose debris (carbon deposits) in there so removing the exhaust and shaking it might get it out... but if its blowing then it may be time for a new can. OEM ones aren't expensive - only £10-20 on eBay or someone on the forums might have one for the cost of postage

[HJFazer]

Ah, OK.

Thanks Dead Eye. Will take it apart and see what I can do then.

My understanding is that the link pipe is fixed with a OEM one, where as usually they are separate on replacement ones, is that right?

Annoyingly mine is in good condition looks wise, especially in comparison to the ones on Ebay. I have enquired about one on the for sale & wanted section so maybe I'll get lucky.

In terms of replacing it, is it literally a matter of taking the old one off and fitting the new one? No extra work needed?

Sorry for all the questions,

HJR

[Doddsie]

http://www.ebay.co.uk/itm/Yamaha-FZS600-...4860d426aa

[Lez72]

Ah, OK.

Thanks Dead Eye. Will take it apart and see what I can do then.

My understanding is that the link pipe is fixed with a OEM one, where as usually they are separate on replacement ones, is that right?

Annoyingly mine is in good condition looks wise, especially in comparison to the ones on Ebay. I have enquired about one on the for sale & wanted section so maybe I'll get lucky.

In terms of replacing it, is it literally a matter of taking the old one off and fitting the new one? No extra work needed?

Sorry for all the questions,

HJR

Yes, If you are replacing it 'like for like' you will be able to just swap them over. Just make sure it's seated nicely where it joins and clamps together.

[red98]

Get yourself upto the ace cafe on sunday at 12...I'll be more than happy to have a look for you, and you'll get to meet a load of other fazer owners aswell....think I might have  a standard can somewhere, I'll have a rummage 

[Dead Eye]

Hell I think I have a standard can somewhere as well... no idea where though :\

[Mark YPVS]

Hi Mate,

Im in Sunbury, if your near, pm me and I can pop over or you to me if you need a hand 

Mark

[HJFazer]

Hi Red98,

Wish I could but have footy for the next 4 weeks. Will definitely try to get up to a ride out ASAP though, cheers for the offer.

Mark, thanks for the offer, someone actually lives very close to me and has offered to help me out but really appreciate the offer. If it doesn't work out I'll send you a PM

Cheers to everyone on here, have to say, this is a great forum in terms of help offered,

Cheers to you all

HJR

[Paul]

You may find that you can stop it blowing by sealing the joint with clear silicon.


Won't stop it rattling of course.


Mine looked absolutely perfect, even though it was blowing.  I never tried the silicon repair on it, but I have used it on a Beamish 350 trials bike and it worked fine.

[Fuzzy]

That person who lives closeby would be me - will have a look into it and see what I can do. Will also be nice to meet a local foccer :-)

[red98]

Dont forget to tell us how you get on.......with piccies 

[Silverlegacy]

did you ever solve this? i too have to same problem and been looking at finding a solution, i bought a replacement exhaust off ebay but it too had the same thing mine had, some people think its made that way and others think its a fault that develops?