Help I have Tweetey bird trapped in my bike!! - 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 12 Old 10-13-2006, 02:00 PM Thread Starter
 
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Help I have Tweetey bird trapped in my bike!!

I might as well be the first to do the "Tweety Bird Post" so here goes.

Hey guys, I know I have seen it talked about before but my bike was not doing it at the time and I did not really pay that much attention to the info. ops: However, yesterday for whatever reason my bike got the "Tweety Bird Syndrome" really bad. :shock: Can you guys tell me how to fix it?
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post #2 of 12 Old 10-13-2006, 02:10 PM
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The cheap fix is to cut the inside pipe with a screwdriver, or something long and sharp. Stick the screwdriver inside the exhast , cutting it top bottom and sides. Sometimes either the top or bottom will cure it, and sometimes it takes cutting all four.

Or you can drill holes in the end of the exhaust pipe.


This isn't the best pic but you can see the holes I drilled in the end of the exhaust pipe.

Today is the first day of the rest of your life.
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post #3 of 12 Old 10-13-2006, 02:15 PM
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Yep... slits in the perferated spark arrester 12,3,6,9o'clock will cure it.

I think it comes from carbon buildup, closing up the holes on the arrester that make the whistle sound.
.

- Joe

HighSpeed Hiker- DV o5'
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post #4 of 12 Old 10-13-2006, 07:21 PM Thread Starter
 
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Thanks for the info guys. I will kill Tweety first thing in the morning :wink:
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post #5 of 12 Old 10-13-2006, 08:51 PM
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My tweety started around 1500 km. It went away on its own around 3000 km, and hasn't been back since (currently at 10500 km)
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post #6 of 12 Old 10-13-2006, 09:10 PM
 
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TWEETY MUST DIE. :lol:
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post #7 of 12 Old 10-13-2006, 10:09 PM
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Get a 11/4 inch hole saw and cut around the exiting exhaust outlet. Once this is done jam a tapered object inside the exhaust pipe and start wiggleing, twisting, cussin' and dancing and eventually the perforated tube will break off. This tube is only approx 6-7 inches long and is spot welded to a raised ring inside the OEM exhaust.

This tube is NOT the spark arrester. The spark arrester is further inside. Now that the tube is out and you have removed all of the spot welded pieces. (I sharpened a large screw driver and used it for a chisel) There is approx 3/8 inch of packing, the length of the tupe that can now be removed. I started the engine and blew it all over the floor.

Get a piece if 11/2 inch exaust pipe and cut one end at a slight angle so that it points down and out to the right side of your bike. (about 2 inches long) Angle cut against the muffler. Now weld the the pipe to your muffler.

This will relieve some back pressure and will create a deeper sound (Slighty, not like a Harley) I did mine and I'm happy as a clam. This whole proceedure can be done without removing the muffler from the bike. Just make sure when you tack weld the exhaust end on you cover the bike plastics and other areas with wet towels. This should also kill the tweety bird, dead.

I would enclose pix of how this is done but I'm too dumb to know how to do that.

harley dog
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post #8 of 12 Old 10-18-2006, 04:56 PM
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I took a 3/8" bit that was a footlong. I inserted it in the pipe all the way to the end where it comes to a cone. Drill out the cone and problem solved. I have heard of people using a 1/2" bit too.

Joe
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post #9 of 12 Old 10-18-2006, 05:26 PM
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You have to like Air-Cooled VW's to appreciate the sound.

Tim

2005 KLR 685
2015 Yamaha Super Tenere ES, 5/23/2015
2012 Yamaha Super Tenere; Purchased 7/30/2011; Sold 5/23/2015
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post #10 of 12 Old 10-18-2006, 08:49 PM
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Joe:
According to the cross section of the OEM muffler that "cone that you drilled through is the "Spark Arrester." Perhaps I'm wrong but I don't think so. And on the other hand it may not be needed.
harley dog :a0019
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