OzVMX Forum

Marque Remarks => Kawasaki => Topic started by: GMC on March 01, 2011, 09:06:02 am

Title: That little muffler thingy
Post by: GMC on March 01, 2011, 09:06:02 am: The early KX 500's have a little alloy bracket that bolts between the frame and muffler.
I wanted to check how many models they fit but I can't look it up on Zedder if I don't know its name.
I have been searching online parts diagrams (CMSNL) for its name and or part No. but it’s not shown on any diagrams.
Can any one shed some light on this mysterious covert part?
Title: Re: That little muffler thingy
Post by: ted on March 01, 2011, 11:54:43 am: Hi Geoff, When i get home this arvo i will take a pic and post it up for you

Did you get the bits i sent?

Cheers Ted
Title: Re: That little muffler thingy
Post by: GMC on March 01, 2011, 12:43:50 pm: Yes they did arrive thanks Ted, it felt like a 'licky dip' box when I went through it, many thanks.

I actually have a muffler thingy from an 87 KX 250 but I wanted to determine if it was the same as the 83 / 84 500.
Once I have a name or number I can run it through zedder.
I was surprised that it doesn't show up on any of the parts diagrams I looked at

I want to finalise a muffler jig for the 500's so i want to be sure the mount on the muffler is in the right place.
If you could note some measurements from yours would be useful, distance between holes and offset.
Title: Re: That little muffler thingy
Post by: ted on March 03, 2011, 08:39:19 pm: RE : 1983 KX 500 A-1 muffler bracket

Hi Geoff...The reason you can`t find the bracket because it was never there in the first place according to the parts catalogue

(http://i582.photobucket.com/albums/ss270/ted84photos/001-4.jpg)

The pipe on mine was built by the late Geoff Worrall and is running a DG muffler

(http://i582.photobucket.com/albums/ss270/ted84photos/003-5.jpg)

(http://i582.photobucket.com/albums/ss270/ted84photos/002-5.jpg)

(http://i582.photobucket.com/albums/ss270/ted84photos/005-3.jpg)

(http://i582.photobucket.com/albums/ss270/ted84photos/004-4.jpg)

(http://i582.photobucket.com/albums/ss270/ted84photos/006-2.jpg)

Hope this helps
Title: Re: That little muffler thingy
Post by: Hardo on March 04, 2011, 11:41:48 am: It's found on the "FENDERS" diagram on the 83 250 schematic... maybe same for the 500?

HTH ...
Title: Re: That little muffler thingy
Post by: Hoony on March 04, 2011, 11:50:58 am: fantastic finish and detail on your Bike TED.
Title: Re: That little muffler thingy
Post by: Stevo17 on March 04, 2011, 11:59:03 am: Hi Geoff, you can borrow mine if you want to make a copy. It looks the same on my 84 250 & 500, plus it looks the same as the one on my 86 KX500 cheers steve
Title: Re: That little muffler thingy
Post by: ted on March 04, 2011, 12:21:52 pm: The parts pic of the muffler came straight out of the original July 1982 Kawasaki Heavy Industries Ltd parts book that came with the bike...so i would assume that it`s a given

Thanks Hoony....There are others that disagree with you and me though
Title: Re: That little muffler thingy
Post by: Hoony on March 04, 2011, 12:26:27 pm: Quote from: ted on March 04, 2011, 12:21:52 pm

Thanks Hoony....There are others that disagree with you and me though

They can have their opinion, even if that opinion is wrong ;)
Title: Re: That little muffler thingy
Post by: GMC on March 04, 2011, 10:01:21 pm: Thanks guys, this is boring detective work compared to carbon dating a Bultaco, but we’re getting there.

Yes Hardo, found it on the mudguard schematic,
I had only looked on the muffler and frame schematics.
I thought it odd that this part wasn’t shown despite being on several models.
So it’s called a Muffler stay

Part # = 35011-1154
Part Description = MUFFLER STAY
Model Count = 4
KX250-C1 83 250 KX250 MOTOCROSS
KX250-C2 84 250 KX250 MOTOCROSS
KX500-A1 83 500 KX500 MOTOCROSS
KX500-A2 84 500 KX500 MOTOCROSS

It comes up as a different part No to my 87 model, which is different to the 86 model, which is different again to the 85 model!!!!

Thanks for the offer of a loaner but if someone can supply me these dimensions that should be all I need.

(http://i15.photobucket.com/albums/a393/gmcloa/Misc%20bike%20stuff/Muffler-stay-87-KX-250.jpg)

It may also be handy if someone can confirm the distance between the 2 mounting holes on the muffler too.
Title: Re: That little muffler thingy
Post by: ted on March 05, 2011, 02:03:39 pm: 85mm hole centre to hole centre

15mm to 18mm offset ...inside to outside..as drawn

After you found that bracket in the Fender section you would assume they wouldn`t put the lifejackets under the deck chairs on the ships they build..hehe
Title: Re: That little muffler thingy
Post by: GMC on March 06, 2011, 06:45:56 pm: Quote from: ted on March 05, 2011, 02:03:39 pm
85mm hole centre to hole centre

15mm to 18mm offset ...inside to outside..as drawn

After you found that bracket in the Fender section you would assume they wouldn`t put the lifejackets under the deck chairs on the ships they build..hehe

Thanks for that Ted.

For the record the...
Part # = 35011-1322
Part Description = MUFFLER STAY
Model Count = 2
KX250-E1 87 250 KX250 MOTOCROSS
KX500-C1 87 500 KX500 MOTOCROSS

is 66mm Eye to Eye and 10mm offset.

One last thing...

(http://i15.photobucket.com/albums/a393/gmcloa/Misc%20bike%20stuff/KX500-muffler-1B.jpg)

Can anyone confrim this measurement for the 83 / 84 500?
I was given the measurement of 125mm many years ago but I suspect it's not correct
Title: Re: That little muffler thingy
Post by: Stevo17 on March 06, 2011, 07:16:06 pm: Hi Geoff, that DEP muffler on my 84 KX500 measures 140mm. The muffler is stamped KX500 84-87

The Answer muffler on my 84 KX250 measures 135mm
Title: Re: That little muffler thingy
Post by: ted on March 06, 2011, 09:18:39 pm: LET YOU KNOW TOMORROW
Title: Re: That little muffler thingy
Post by: Hardo on March 15, 2011, 10:44:45 am: Hey Geoff, are you planning on producing these little "Muffler Thingy's" ?

If so, I would like to buy one from you ...

:)
Title: Re: That little muffler thingy
Post by: GMC on March 16, 2011, 04:25:04 pm: Quote from: Hardo on March 15, 2011, 10:44:45 am
Hey Geoff, are you planning on producing these little "Muffler Thingy's" ?

If so, I would like to buy one from you ...

:)

I wasn't planning to, just trying to set a muffler up to the right dimensions.

If you can't find a second hand one I could make you one, allow 27.50 including post.
Which model do you need it for?
It would seem all the different models had different lengths & offsets.

(http://i15.photobucket.com/albums/a393/gmcloa/Mufflers/KX-500-muffler-83-84.jpg)
Title: Re: That little muffler thingy
Post by: Hardo on March 26, 2011, 11:11:50 pm: I'd really like one. I need it for the 83 KX250 C1.

Possible?
Title: Re: That little muffler thingy
Post by: Hardo on April 15, 2011, 09:26:58 am: Cheers Geoff. Great work and she's fitted ....

Perfect!

Many thanks.... I am now Australia's newest owner of a KX "muffler thingy" .... ;D
Title: Re: That little muffler thingy
Post by: GMC on April 15, 2011, 10:08:18 am: Quote from: Hardo on April 15, 2011, 09:26:58 am
I am now Australia's newest owner of a KX "muffler thingy" .... ;D

Not only that, you are the owner of the first and only GMC muffler thingy.

Now that I have experimented with you I need to make one for myself :D
Title: Re: That little muffler thingy
Post by: Hoony on April 15, 2011, 10:25:01 am: Note to self, beware of GMC using me as guinea pig.
Title: Re: That little muffler thingy
Post by: Hardo on April 15, 2011, 10:59:18 am: Sh1t !

I was the GMC Lab-Rat !!!

:o :o :o
Title: Re: That little muffler thingy (revisited)
Post by: GMC on February 17, 2014, 10:17:57 pm: I have had another request to make a ‘muffler thingy’ as they are apparently unobtanium so I’m thinking about getting some profile cut.
They will be made from 3/16” – 4.8mm 6061 alloy

I will be making these 2 types and I’m wondering are there any other sizes that are also sought after?

(http://i15.photobucket.com/albums/a393/gmcloa/Misc%20bike%20stuff/Muffler-stay--KX-_zps036fd916.jpg) (http://s15.photobucket.com/user/gmcloa/media/Misc%20bike%20stuff/Muffler-stay--KX-_zps036fd916.jpg.html)

Even for other brands. The more parts I have cut from the sheet the cheaper they become.
Title: Re: That little muffler thingy
Post by: splime738 on February 18, 2014, 05:58:29 am: Hi Geoff,

do you make a muffler for a 85 250 KX, and if so is it round rather than oval?
Title: Re: That little muffler thingy
Post by: GMC on February 18, 2014, 01:34:05 pm: Quote from: splime738 on February 18, 2014, 05:58:29 am
Hi Geoff,

do you make a muffler for a 85 250 KX, and if so is it round rather than oval?

Apparently I do, I jigged the 84 KX 250 years back and it seems the same muffler fits 84 - 86 250's

http://www.geoffmorrisconcepts.com/23/online-shop/84-84-86-Kx-250-Muffler/
Title: Re: That little muffler thingy
Post by: Hardo on September 05, 2014, 11:38:12 pm: Hey again Geoff.
I need another 'KX Muffler Thingy' for my 83 KX500.

It would be the same as the one you made me for my 83 KX250.

Is it possible mate?
:)
Title: Re: That little muffler thingy
Post by: 80-85 husky on September 06, 2014, 07:48:33 am: sounds like you should have had a bag full last sunday geoff..given 1 out to everyone going past ;D
Title: Re: That little muffler thingy
Post by: GMC on September 21, 2014, 10:42:32 pm: Quote from: Hardo on September 05, 2014, 11:38:12 pm
Hey again Geoff.
I need another 'KX Muffler Thingy' for my 83 KX500.

It would be the same as the one you made me for my 83 KX250.

Is it possible mate?
:)

Hey Hardo, I only just noticed this.
Yes I can make another one if you need.
I never did get any Laser cut as I didn't get any bites to my request.