Pink Batts flammable/baffling pipes

[The Lone Rider]

It has become WOF time, and I've discovered I absolutely positively cannot get my custom pipes off to put the stock ones on! The dudes simply did not put any anti-sieze or similar on the join where they hook onto the header pipe. (mine are custom end pipes).

So to get my WOF I'm going to have to make some baffles. I've tried rolling up some galvanized wire mesh.. didn't make much difference. Perhaps not densely rolled up enough? I can't get it rolled any tighter.. and "chicken" wire I know is easy but I'm not to keen on it rusting in my pipes.

A guy at my work said with a bike he had he got a small piece of pink batts (very small he says..) and put it down the pipe and then shoved in wound up chicken wire to hold it in.

So.. any thoughts on that? Is Pink Batts flammable?

[nodrog]

if you are going to go that way for cheap baffles use goldielocks pot scrubbing pads, they should do the job to get a warrent, but i dont know what the WOF dude is going to say if he looks up ya exhaust and sees all the mess.

[The Lone Rider]

Would be pretty easy to look down them.. they are two inch wide (on the inside) short length drag pipes and are on a slant upwards.

I'd have to hope he'd be more concerned that complied with the noise laws then with how I've stuffed the pipe to make it comply.

Goldielocks scrub pads.. you just shove down or you mean use that instead of the batts and then put wire to hold it?

[nodrog]

does the same thing as pink batts.

any exhaust shop should be able to make you up some removable baffles that are held in by a bolt, they arent that expensive, probably the same cost as all the chicken wire and pinkbatts you will need, and you will have them forever.

[Hitcher]

Take your bike to a bike shop rather than to a testing station for your WOF.

[Deano]

I found some fluffy insulation in the rear of my old oven - it's heat proof and makes good baffling material. You might be able to procure some from an oven at the tip ? In the whiteware section rofl

[fireball]

my mate used pot scrubs in his they work wonders... but only a temp fix really

[The Lone Rider]

You would THINK any exhaust shop could, but my pipes were made by an exhaust shop and they didn't have a clue how to make baffles.

Unless you mean a bike exhaust shop.

Only about $10 to have the chicken wire and batts :P

Might just take the bike to Trevor Pierce and see what I can get.

Oh and I would like the bike quieter in general, not just for WOF. I get pulled over at night if I ride it. TOO loud. I want it loud but not "No fucking way mate... pull over now" loud.

[nodrog]

Take your bike to a bike shop rather than to a testing station for your WOF.

some times the easiest answers are the hardest to see :niceone:

[Sketchy_Racer]

Pink batts all the way.

I use them to pack all my mufflers. Cheap (outta the roof!) and work well.

I had the same problem with you on my old GPX250.. had a noisy ass Yoshi pipe on it.. But yeah bit of batts and chicken wire did the job well.. untill on the way home when i opened her up and it spat it all out.. but meh.. who needs baffles!

[The Lone Rider]

who needs baffles!

I do :(


Filling in space.. filling in space.. hope this is enough characters..

[heyjoe]

I do :(


Filling in space.. filling in space.. hope this is enough characters..

Hey there Llama Sola,

I am no expert in bike exhausts but I suspect that pink batts would not last long inside exhaust pipes like real exhaust wrap which is similar looking to batts. Pink Batts will burn & blast out eventually. They do have a fire rating but that is more related to how long before they burn in a house fire for safety purposes. Ya gotta remember that they are a building product made for house insulation after all.

Someone already said in another reply that going to a place that specialises in exhaust jobs and getting a baffle made to do what u want is the best option. U can then use it/ remove it as u need and u will always have it.

Another suggestion is go to a place that I have heard of called Custom Engineering at Levels Timaru. They are at RD 4 and the ph is 03-688-7144. They are on the Pleasant Point Highway from the Washdyke end. The site is about 3 - 4 km along on the right with a sign on the farm drive way. I have heard that this guy does truck, marine and bike mufflers & mods at reasonable rates. He is recommended by many riders in Timaru area. Just another option to think about.

[The Lone Rider]

Hey there Llama Sola,

I am no expert in bike exhausts but I suspect that pink batts would not last long inside exhaust pipes like real exhaust wrap which is similar looking to batts. Pink Batts will burn & blast out eventually. They do have a fire rating but that is more related to how long before they burn in a house fire for safety purposes. Ya gotta remember that they are a building product made for house insulation after all.

Someone already said in another reply that going to a place that specialises in exhaust jobs and getting a baffle made to do what u want is the best option. U can then use it/ remove it as u need and u will always have it.

Another suggestion is go to a place that I have heard of called Custom Engineering at Levels Timaru. They are at RD 4 and the ph is 03-688-7144. They are on the Pleasant Point Highway from the Washdyke end. The site is about 3 - 4 km along on the right with a sign on the farm drive way. I have heard that this guy does truck, marine and bike mufflers & mods at reasonable rates. He is recommended by many riders in Timaru area. Just another option to think about.

Thanks, I will look at going to dealer at a later stage as I can't think of any exhausts place in CHCH that does baffles for bikes. I found it hard enough finding an exhaust place that would even do the pipes for my bike :(

Im going to try the goldilocks and wire mesh rolls and see how long it lasts. The wire mesh rolls I've had in on their own for several weeks now and it's been holding fine but made almost no difference on its own.

[The Lone Rider]

Well I tried the goldilocks + wire. Worked really well.. except the ones in the bottom of the two pipes kept flying out after awhile.

Bike shop it is! Hope they can work something out.. would be hard to work on the damn thing since you can't get the end pipes off easily anymore.

[xwhatsit]

Dude if you're going to go with goldilocks and wire, then why are you worried about the chicken wire rusting? Just wind some chicken wire mesh really tightly -- somebody here suggested winding it really tightly around a dowl -- it's actually quite effective once you get it dense enough.

In the longer term, you can buy baffle inserts off eBay and the like. Basically just perforated pipe. If your custom pipes are uniform diameter it should be straightforward.

[Deano]

Use chicken wire and steel wool at the end of the pipe to contain pink batts, stop it all blowing out ?

[imdying]

Can probably sort out the hook ups for someone in Christchurch, do you have any pictures?

[bimotabob]

Hi

I always go to our local fibreglass supplier to get muffler packing.
Pink batts is shit and burns, I used it in my 2 stroke once and 4 strokes
can get even hotter pipes.
For $10 I used to get enough glass sheet to do 2 sets of four mufflers.
It doesn't burn but is way cheaper than the bike shop "cheap" stuff.

Incidently suppliers of pipes often stock the original packing -
two brothers (wellington m/c's) do and it's the right amount of dense
seemingly good quality packing with rivets in this case.

Good packing makes a differences (I have tried about 6-8 types)

cheers

[betti]

i've got two of these knocking about if yer interested, got one in my yoshi rs-3, works well.
The diameters are 48mm largest point, 32mm smallest point, shoulder 28mm.
Pm me if any good

[The Lone Rider]

Ill try and put up some pics soon. Problem with buying baffles like that one betti shows is that mine are custom.. not just aftermarket custom. I paid someone to hammer them out and weld them.. wasn't hard to do in design.. I just dont have the tools or can weld. Because of this I reckon the pipes would be hard to find baffles the right size. They are approximately 2inches in internal diameter, but I haven't measured it yet.

Edit--

Thanks for all the helpful posts. I should have gotten onto this before the WOF expired.. but I just assumed the end pipes would be easy to pull off like the original stock ones were!

[The Lone Rider]

A pic of the pipes...

They, for the most part, are literally just open pipes haha :wari:

[The Lone Rider]

Just thought I'd post an update as this may in the future be helpful to someone else.

I took it to my usual bike shop.. only to find not only they don't do WOF they have nothing to do with exhausts and such. They recommended I go to Magoo Mufflers, as they did "quite a lot of work" for the shop I took my bike to. I got lost on the way there, and being nearby Radical Customs & Choppers I decided to pop in just incase they got anymore baffles in that were the right size.. as previously they only had 1 3/4" and I need larger.

Then I got the bright idea.. get the engineer at work to weld an additional sleeve onto the end so that it would be the correct diameter! So bought two 1 3/4" Custom Chrome chopper baffles. Engineer at work did the work within two hours and now I just need to take a file to smooth the weld spots, and drill in the most hidden place I can find a hole to put the bolt through.

Anyone know where in CHCH I could use a bike lift for awhile? I'd like to get under the bike to do the drilling and fitting if possible.

[kevfromcoro]

Pink Batts will burn after a while.
There is a high temp one,,its yellow. and will take the heat
Dont know about keeping it in there though.

[The Lone Rider]

Heres pics of the new baffles in the pipes. Not to bad eh

[The Lone Rider]

Took it for a 100+ ride today with another Chromed Knuckles member.

Sounded good.. worked well. Baffles didn't come flying out.

Had trouble getting my WOF though.. took to AA and they said my chain was too loose and that because they arent the original pipes that won't pass it. I appreciate the comments on the chain but the pipes are NOT that loud now. So I took it to the place Radical Customs & Choppers and while they passed me, they didn't do as thorough a job.

Funny that, I wouldn't mind them checking my bike over for any safety related thing such as my tires need replacing soon and the chain should be tightened.. but mess with my style and grrrrr!