Hole saw Mod - Honda Shadow Forums : Shadow Motorcycle Forum
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post #1 of 15 (permalink) Old 03-21-2010, 10:33 AM Thread Starter
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Hole saw Mod

I was needing some advice. Ive seen the hole saw mod done on a shadow 750 before. The after sounds alot better, however Ive heard of some negative side effects as well. Can anyone give me some info on this mod?

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post #2 of 15 (permalink) Old 03-21-2010, 11:18 AM
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The only negative about the holesaw mod is the mufflers may sound hollow to you after doing it. That can be eliminated by blocking the crossover tube between the mufflers with a small round disc. That will eliminate that hollow sound you hear (more of a thumping sound now)Then open the air jets to compensate for the opened mufflers.
If it's too loud for you (not too many claim it is) you can always do the "washer" mod in the end of each mufflers to control the volume.
I only wish I could make a video to show the difference in sound between the crossover mod vs without it, and the washer mod, opened and closed.

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post #3 of 15 (permalink) Old 03-21-2010, 12:47 PM Thread Starter
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saw some you tube videos i think i am gonna do it only question is will it affect performance?
now i am looking into replacing the rear sprocket........

2001 Shadow Spirit 750
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post #4 of 15 (permalink) Old 03-21-2010, 12:58 PM
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From hearing the 750s go by on the highway, the sprocket mod would be one of the first things I'd do on that bike. Look on YouTube and you see the difference it makes. I only wish I could do it on my shaft drive 1100.

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post #5 of 15 (permalink) Old 03-21-2010, 01:01 PM
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Here is a video after i cut off my cross over...


http://www.youtube.com/watch?v=xcaf6Taa0eI

'05 Shadow Spirit 750 DC
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post #6 of 15 (permalink) Old 03-21-2010, 04:46 PM Thread Starter
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Ive also heard the mod is a temporary thing is that true?

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post #7 of 15 (permalink) Old 03-21-2010, 06:26 PM
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No performance increase but it does sound better. No re-jetting if you don't take out the secondary set of baffles.

It's only temporary if you want it to be temporary. It just depends on your tastes.

T.C.

1997 Honda Shadow VT1100C1 Spirit -- Too much work to list
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post #8 of 15 (permalink) Old 07-19-2010, 10:35 PM
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I've been wanting to do something like the holesaw mod, but everything I've seen here is for bikes with 2 separate pipes. I have a 2000 Shadow VT750 ACE with two pipes that merge into one large muffler. Can it still be done on this?

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post #9 of 15 (permalink) Old 07-19-2010, 11:20 PM
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Take a 1 inch sharpened rod about 3 feet long and push it into the holes at the back of the muffler. When you find the it stops beat it in with a hammer. Do it to both holes and you will have an awesome sounding 750. We did it to my buddies wife's ACE. It's still quiet at idle but it sounds sweet going down the road. You will not be dissapointed.

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post #10 of 15 (permalink) Old 07-20-2010, 12:49 AM
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Quote:
Originally Posted by PainterD
The only negative about the holesaw mod is the mufflers may sound hollow to you after doing it. That can be eliminated by blocking the crossover tube between the mufflers with a small round disc. That will eliminate that hollow sound you hear (more of a thumping sound now)Then open the air jets to compensate for the opened mufflers.
If it's too loud for you (not too many claim it is) you can always do the "washer" mod in the end of each mufflers to control the volume.
I only wish I could make a video to show the difference in sound between the crossover mod vs without it, and the washer mod, opened and closed.
So blocking or removing the cross over will get rid of that hollow toned sound and make it sound deeper? I have an 07 C2, how hard is it to remove and access the crossover?
I can't access youtube on the network I am on right now, so I can't watch the videos...



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