list advice

[deadtvs]

Wait a minutes - what's this "drilled 2 1/2" holes" bit? I'm still trying to kill off tweety, and have drilled some very small holes in the endcap (1/8" at 12,3,6, and 9). That seemed to make a little difference, but tweety is definitely still there. Are these holes you speak of in the end cap? Were they to eliminate tweety, or to increase performance? Both? Dan --- In DSN_KLR650@yahoogroups.com, "Andrus Chesley" wrote:

> > Yes there is probably more than a person can read in the arkives

on

> exhausts. > My trip was an ISD Trap < Too loud and not enuff power increase to > warrent the noise > Next was a Competition type that I got off ebay and it was

about

> the same as the Trapp, Loud. > When back to the old standard with 2 1/2" holes drilled in

it at

> 2 and 4 oclock. Not much louder than stock and let the revs run a

bit

> free from the plain stock. All I have done to the carb is drill

the

> brass plug and set the Idle mixture screw at about 2.5 turns. > > Lots of better things to spend a few hundred bucks on to improve

your

> KLR than exhaust. > > '43 Andy in SW Louisiana >

[Alan L Henderson]

deadtvs wrote:

> Wait a minutes - what's this "drilled 2 1/2" holes" bit? I'm still > trying to kill off tweety, and have drilled some very small holes in > the endcap (1/8" at 12,3,6, and 9). That seemed to make a little > difference, but tweety is definitely still there. Are these holes > you speak of in the end cap? Were they to eliminate tweety, or to > increase performance? Both? > > Dan

Besides making the bike noiser and a little more free flowing the mod probably by passes the spark arrestor. Alan Henderson

[Krgrife@aol.com]

In a message dated 3/20/2006 10:54:02 A.M. Pacific Standard Time, hortonhearsawho@... writes: Besides making the bike noiser and a little more free flowing the mod probably by passes the spark arrestor. The spark arrestor is pretty deep inside the KLR muffler so just drilling the rear chamber doesn't affect it. Kurt [Non-text portions of this message have been removed]

[Alan L Henderson]

Krgrife@... wrote:

> > In a message dated 3/20/2006 10:54:02 A.M. Pacific Standard Time, > hortonhearsawho@... writes: > > Besides making the bike noiser and a little more free flowing the mod > probably by passes the spark arrestor. > > > The spark arrestor is pretty deep inside the KLR muffler so just drilling > the rear chamber doesn't affect it. > Kurt >

If I'm not mistaken the spark arrester blows the particles back into the rear compartment. Alan

[Krgrife@aol.com]

In a message dated 3/20/2006 1:46:20 P.M. Pacific Standard Time, hortonhearsawho@... writes: If I'm not mistaken the spark arrester blows the particles back into the rear compartment. I opened up an old stock muffler a while back and was surprised how far toward the front the spark arrestor was. There is a baffle between it and the rear chamber with a fairly small opening, I didn't feel that opening up the rear chamber would affect the spark arrestor function but that's just my opinion. Kurt [Non-text portions of this message have been removed]

[dooden]

--- In DSN_KLR650@yahoogroups.com, Alan L Henderson wrote:

> > deadtvs wrote: > > Wait a minutes - what's this "drilled 2 1/2" holes" bit? I'm still > > trying to kill off tweety, and have drilled some very small holes in > > the endcap (1/8" at 12,3,6, and 9). That seemed to make a little > > difference, but tweety is definitely still there. Are these holes > > you speak of in the end cap? Were they to eliminate tweety, or to > > increase performance? Both? > > > > Dan > > Besides making the bike noiser and a little more free flowing the mod > probably by passes the spark arrestor. > Alan Henderson >

If my aging memory serves me correctly, the spark arrestor in the OEM KLR muffler is in alot deeper than the end tip. Dooden A15 Green Ape

[Andrus Chesley]

Dan I don't know what it will do to tweety> I did a long screw driver and hammer to quell tweety. The holes were drilled thru the end cap to let the engine rev just a bit better without hardly any increase in noise. I picked up that tip on here several years back if I remember right. I usually stay about one exhaust system ahead on my KLR getting them off ebay at very cheap prices. I think I got the last one off an '05 for about 50 bucks with shipping. Andy in SW Louisiana

[Andrus Chesley]

Ya'll are totally right on the location of the spark arrester location on the KLR muff. I also disected an old one just to see how it was made. As for the increase in noise. Hmmmmmm . Just a touch more noise than my stock BMW R1150GSA and we all know how quiet stock BMW's are. I never make a lot of comments on anything unless I've tried it mostly. That way I feel I can help a person more by my experience. '43 Andy in SW Louisiana

[revmaaatin]

--- In DSN_KLR650@yahoogroups.com, "Andrus Chesley" wrote: SNIPPPP>>>>

> I never make a lot of comments on anything unless I've tried it

mostly.

> That way I feel I can help a person more by my experience. > > '43 Andy in SW Louisiana >

unSNIPPPP

[Christopher Creighton]

Hey Now, Before you spend big bucks on an exhaust system, try fitting a tractor muffler to the KLR. I used a Stanley replacement muffler model DR-8 from Tractor Supply Store and had the local muffler shop bend and weld me a custom pipe. There are several guys who have done this mod. I spent about 90 bucks on this project. It sounds good and feels like I got a little more umph in the lower end (according to the seat of the pants dyno). I also added a No-Toil air filter and adjusted the mixture screw out to 2 full turns. Here is link on KLR650.net where I posted some text and pictures: http://www.klr650.net/forum/viewtopic.php?t=9091&highlight= Finest kind, -- Chris enjoying the thump in THUMPER

--- In DSN_KLR650@yahoogroups.com, Matthew Ernst wrote: > > I am wanting to upgrade the exhaust on my 06 KLR. The options seem to be Big gun, > Supertrap and Durapro. I am looking for advice and what experience people have had > with these. Also what other modifications have to be made(rejet, air cleaner etc.)