Hello Guest User,

Please feel free to have a look around the forum but be aware that as an unregistered guest you can't see all of it and you can't post.

To access these 'Registered Users Only' areas simply register and login.

Exhausted

Need help restoring, building, or finding then try here.

Moderators: chrisu, paul doran, Taffus, KeithZ1R

Message
Author
User avatar
davido
100Club
100Club
Posts: 182
Joined: 14th Jan 2015
Location: Netherlands

Exhausted

#1 PostAuthor: davido » Mon Feb 18, 2019 4:50 pm

I have a Harris exhaust with a race baffle. A straight perforated tube with no baffling material around it. If I wrap some glass cladding (?) around it, will this quieten things down a bit? Would I need to retune the carbs?
http://www.kzrider.com/forum/11-project ... ject-build

KZ1000CSR
GSF600Bandit
CBX750F
CB550F

User avatar
chrisNI
Site Admin
Posts: 3694
Joined: 22nd Dec 2001
Location: NI

Re: Exhausted

#2 PostAuthor: chrisNI » Mon Feb 18, 2019 5:50 pm

Yes a bit and possibly? :shock:

User avatar
ADRIAN H
Hardcore
Hardcore
Posts: 4528
Joined: 21st Mar 2009
Location: Charminster. Bournemouth

Re: Exhausted

#3 PostAuthor: ADRIAN H » Mon Feb 18, 2019 8:45 pm

If you mean this - https://www.bikermart.co.uk/Motorcycle- ... ing-Sheets

the answer is yes.
adrianhorsfield@live.co.uk
Sunny Bournemouth. Dorset. UK.

User avatar
KWACKERZ1
Hardcore
Hardcore
Posts: 1963
Joined: 1st Sep 2007
Location: Leicestershire

Re: Exhausted

#4 PostAuthor: KWACKERZ1 » Mon Feb 18, 2019 9:00 pm

I have swapped from Harris race baffles and to the street versions on the same jetting without much if any detrimental affects (on a standard engine with std jetting though).

My advice would be do it and run it, at worse it will run a little rich, which wont cause any damage.

User avatar
davido
100Club
100Club
Posts: 182
Joined: 14th Jan 2015
Location: Netherlands

Re: Exhausted

#5 PostAuthor: davido » Mon Feb 18, 2019 9:51 pm

Ok, Ill do dat den. Thanks.

Mr Bump
100Club
100Club
Posts: 382
Joined: 30th Dec 2015

Re: Exhausted

#6 PostAuthor: Mr Bump » Tue Feb 19, 2019 1:55 pm

I’d assumed that the race baffles are supposed to be be packed with fibreglass, like a dirt bike baffle. They sound much nicer with packing, booming without being too raucous.

Having run with road and race baffles with and without packing I prefer race baffle plus fibreglass packing myself.

Olly
'In your twenties you think you are immortal, in your thirties you hope you are immortal, in your forties you just hope it doesn't hurt too much'

Lemmy

User avatar
ADRIAN H
Hardcore
Hardcore
Posts: 4528
Joined: 21st Mar 2009
Location: Charminster. Bournemouth

Re: Exhausted

#7 PostAuthor: ADRIAN H » Tue Feb 19, 2019 4:31 pm

Mr Bump wrote: I prefer race baffle plus fibreglass packing myself.


That is odd, or am I misreading this ?
adrianhorsfield@live.co.uk
Sunny Bournemouth. Dorset. UK.

User avatar
chrisNI
Site Admin
Posts: 3694
Joined: 22nd Dec 2001
Location: NI

Re: Exhausted

#8 PostAuthor: chrisNI » Tue Feb 19, 2019 6:25 pm

ADRIAN H wrote:
Mr Bump wrote: I prefer race baffle plus fibreglass packing myself.


That is odd, or am I misreading this ?


No the race baffle is straight through but the tube is perforated you can wrap that, restricts it a bit from no packing and will quieten it a bit. The road baffle is a completely different bit of engineering which restricts the exhaust somewhat more and quietens it quite considerably.

User avatar
davido
100Club
100Club
Posts: 182
Joined: 14th Jan 2015
Location: Netherlands

Re: Exhausted

#9 PostAuthor: davido » Tue Feb 19, 2019 8:50 pm

This is what needs baffling. I ordered some material today. Hopefully here by the weekend. Ha ha ha ha! I kill me sometimes.
Attachments
DSC08803 - Copy.JPG

User avatar
gpjes
100Club
100Club
Posts: 230
Joined: 13th May 2013
Location: Bingley West Yorkshire

Re: Exhausted

#10 PostAuthor: gpjes » Wed Feb 20, 2019 8:36 am

Back when we all had a Arris, we had one street baffle we'd pass around for MOT time, I still have the said Item, I got it chromed years ago when I was on maintainence at a electroplaters. Saturday afternoon Asian lads, plenty chrome on Jesiboy, they did the Supertrapp for my XT500 at the same time, I had to emery the joints to get it to go back together ho ho, so plenty on very shiney! its somewhere in my workshop I got a stainless race baffle made not so long ago £85 at Zorstec in Shipley :D
More Smiles Per Mile

User avatar
davido
100Club
100Club
Posts: 182
Joined: 14th Jan 2015
Location: Netherlands

Re: Exhausted

#11 PostAuthor: davido » Sat Feb 23, 2019 6:24 pm

So, I wrapped the baffle today. I would say it has taken the edge off the sound. Nothing more. A bit less harsh,maybe warmer ( as someone said). Cant say more than that. Ill run it like this for a while and see if I get used to it. (Couldnt get used to the un-wrapped baffle.).
Ill let you know.

User avatar
Gonzo
Custard Cream
Custard Cream
Posts: 525
Joined: 27th Mar 2017
Location: Surrey / Hants border

Re: Exhausted

#12 PostAuthor: Gonzo » Wed Mar 27, 2019 7:15 pm

I bought a second-hand Harris pipe from this forum and have only recently fitted it to my bike. The first couple of ride-outs went well enough but today the bike kept cutting out. It would start again almost immediately and tick over but shortly after I pulled off it would stop / cut out again. Eventually, once I got it warmed up, it was ok but when I went back out later - same thing with a few, loud, back-fires too. Bike was fine on the old exhaust... Jetting problems maybe?
Last edited by Gonzo on Wed Mar 27, 2019 10:17 pm, edited 1 time in total.
1978 Z1000A2
Previous Zeds:
1975 Z1B
1982 Z650F3

PaulMceleney
Chunks
Posts: 568
Joined: 29th Jan 2008
Location: milton keynes

Re: Exhausted

#13 PostAuthor: PaulMceleney » Wed Mar 27, 2019 7:48 pm

Sounds like your main jets are blocked and picking up dirt in the carb remove brass screws and flush out carbs

User avatar
Gonzo
Custard Cream
Custard Cream
Posts: 525
Joined: 27th Mar 2017
Location: Surrey / Hants border

Re: Exhausted

#14 PostAuthor: Gonzo » Sun Mar 31, 2019 9:09 am

Nope, it was the little blue connector that comes from the Dyna S ignition and connects to the coil wire. It had a bad connection that was breaking down when under load. Got lucky finding it as it's something that could've got overlooked while you replace a few other, expensive parts trying to remedy the problem.
1978 Z1000A2
Previous Zeds:
1975 Z1B
1982 Z650F3


Return to “Bike Help”

Who is online

Users browsing this forum: marmck and 84 guests