Old KDX too loud

[hinmo]

Greetings - newbie here. I sold my orange thumper a few months ago and am making my old backup bike, a 92 KDX, my primary ride. Seeing as I don't ride too often it makes sense. This bike is in great shape and runs excellent.

Is there anyway to quiet this old "chainsaw" down? It has a stock silencer. I think I repacked it a year or two ago. I don't want to loose any performance, but it really is loud.

Any suggestions?

 

[julien_d]

The stock silencer on the 89-94's is a good unit, and a black hole for sound. I don't know of any quieter silencer you could put on. Have you cleaned and repacked it?

 

[Joburble]

I rode a 93 with a stock silencer and it was as quiet as a mouse. Are you sure it's the stock silencer, spark arrestor type?

 

[dirt bike dave]

Someone may have modified the silencer.

If the guts have been removed, it would be much louder than stock.

 

[hinmo]

I'm pretty sure its stock and pretty sure I repacked it a couple years ago. I dont remember any spark arrestor in the can.

I guess I will leave well enough alone, but I can tell you fo sure: IT IS VERY LOUD

 

[julien_d]

If it is very loud, something is wrong. Take a quick picture and we can let you know if it's stock. packing is in the rear half, spark arrestor in the front half. Just a pic on the bike and I can tell you if it's the correct silencer.

If you don't need a sparky, the DG silencer is nice and quiet, and a good solid unit.

 

[hinmo]

I found the markings on it. Its definitely stock. I will pull it out and check packing and report back.

If I need a DB, do I need to re-jet?

 

[julien_d]

DG? No, you probably would not need to rejet for a silencer swap. I've used both, and honestly I prefer the stock silencer. Specifically the 89-94 stock silencer. Rebuildable, forestry approved sparky, solid unit. Here's a link to that DG for a good price though....

http://cgi.ebay.com/ebaymotors/DG-1...5400598QQptZMotorcyclesQ5fPartsQ5fAccessories

dirtoverstock has them on their website as well as the matching DG pipe...

www.dirtoverstock.com

 

[hinmo]

Thanks Julien - I'll take it apart when I get a chance and show some pics.

 

[G. Gearloose]

I made a turndown outlet that fits right in using a 1" 90 degree copper street elbow, it puts the sound into the ground, quite effective, plus frequent repack around that short center section in the SA/silencer.

 

[SS109]

I would try a repack and see how that goes.

BTW, I don't know if the '92 is the same as a '90 (I think it is) but here is a pick of the stock silencer disassembled. Part #3 is the spark arrestor section of the silencer.

 

[hinmo]

SS109 - nope, I don't remember all those parts last time I had it apart. The "can" is the same, but the guts are not. Someone must have opened her up alittle.

I see some for sale on ebay....maybe I'll make a bid.

Anybody got a bead on a used stock one that will fit a '92?

thx all

 

[hinmo]

update:

Received a used silencer from ebay. Noticed it was about 6 inches longer than mine...bottom line, the one on mine had been cutdown (good job, looked factory). The "new" one mounted fine and sounds great.....QUIET!

 

[Joburble]

:cool:

 

[glad2ride]

AWESOME!!

Thank you for helping out all riders by trying to make your bike quieter.

Thanks for posting a follow-up as well.

 

[hinmo]

here in the land of the liberal (Taxachusetts) it all about being as quiet as possible....if you get my drift!


they spend billions trying to catch us, rather than millions on a legal place for us to ride. My local spot, they have chased us for years....until they strip-mined it and put up condos.....huh?