Tweety Mod. - Kawasaki KLR 650 Forum
1987 to 2007 Wrenching & Mods For maintaining, repair or modifications of Generation 1 KLR's. 2007 and earlier.

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post #1 of 14 Old 06-24-2015, 04:22 PM Thread Starter
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Tweety Mod.

Is there a before and after sound clip for this mod on a gen 1 muffler?

Last edited by Drifter.; 06-24-2015 at 04:25 PM.
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post #2 of 14 Old 06-24-2015, 06:24 PM
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You probably would find one on You Tube.

My Kaw Barn - 2004 KLR, 2006 Concours (sold), 1997 Bayou 400.

"It's a friggen motorcycle, it's not supposed to be comfortable, quiet or safe. The wind noise is supposed to hurt your ears, the seat should be hard and riding it should make you shit your pants every now and then. "

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post #3 of 14 Old 06-25-2015, 01:24 PM Thread Starter
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I looked only found after mod. If anyone has done this mod how much louder is it cruising down the road, i am old..er and starting to like quiet more.

Seems utubers like idle sounds never a clip of riding down a road.
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post #4 of 14 Old 06-25-2015, 10:09 PM
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I've done the mod and really didn't notice anymore noise than stock.

I don't believe in life saving exhaust so I like it quiet too.
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My Kaw Barn - 2004 KLR, 2006 Concours (sold), 1997 Bayou 400.

"It's a friggen motorcycle, it's not supposed to be comfortable, quiet or safe. The wind noise is supposed to hurt your ears, the seat should be hard and riding it should make you shit your pants every now and then. "

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post #5 of 14 Old 06-26-2015, 07:06 AM Thread Starter
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4ever, did you do the 1.5 inch hole saw mod? If so how do you get the tweeter out at that point?
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post #6 of 14 Old 06-27-2015, 01:28 PM Thread Starter
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So the people that do the 1.5 inch hole cut in pipe what are they actually removing if anything? Once the hole is cut then what is the next step?
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post #7 of 14 Old 06-27-2015, 02:04 PM
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That method is usually to wedge a dowel into the pipe or use some bushing material to center a hole saw. The hole saw is used to cut the end of the muffler so as to remove the perforated screen outlet pipe with some of the end disk.

In some cases, people weld the seam of the pipe and reinstall; in others, cut the pipe off and reweld the end piece; in others another piece of material is substituted.

I've given up on that because of the amount of work when simply spreading the seam seems to work well enough. It sometimes takes a few tries to remove the "whistle cavity". After that the pipe either remains as stock or an angled extension is added.

Some like Tweetie as it adds character, much as do the tappet sounds for early BMW boxers, timing belt whistle from Honda ST1100's, etc.

What is your goal?
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post #8 of 14 Old 06-28-2015, 05:57 AM Thread Starter
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Goal, better sound....if its a bit louder OK, i have a second gen pipe that everything in the last chamber is removed what a PITA that was drilling cutting punching and lots if constant bending up then down for an hour to get the metal to break....finally got that baffle out that think must weigh 4 lbs alone now is sounds great but to loud.

The gen one pipe has to be diff. than gen 2, i have seen a pic of a short 1 inch wide or so baffle after drilling the hole.....how does it come out is it pressed in welled in, how does it come out? I do not want to destroy this gen one muffler, like i did on the gen 2.
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post #9 of 14 Old 06-28-2015, 02:24 PM
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If you are able to take photos, especially showing the differences, that would be of interest.

I have only gone so far as removing Tweetie, adding muffler extensions and some other minor mods since I am opposed to louder motorcycles. If I could have a bike which was silent, that would be better as one less thing to bother others. Just my point of view.
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post #10 of 14 Old 06-29-2015, 09:06 AM Thread Starter
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Thanks for answering the questions, but i am looking for specifics, i have seen the utube vids that say cut a hole weld on a cap and wala.....what are they removing through that 1.5 inch hole?

The gen 2 pipe i had was already somewhat butchered before i got it so i figured what the hell might as well take the rest of it out, real loud then.
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