Drilled out my baffles - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 8 (permalink) Old 04-02-2012, 10:02 PM Thread Starter
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Thumbs up Drilled out my baffles

Very happy with the result. I drilled 8 3/8" holes in each side. I've also painted my headlight ring flat black. Enjoy.

2004 VN750: Custom Seat, NGK Plugs/Wires, Drilled Baffles, 12 inch apes
2006 VW GTI 6MT: 3" TBE, CAI
2006 Malibu Maxx SS (Wifes ride): Straight Pipes
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post #2 of 8 (permalink) Old 04-02-2012, 10:23 PM
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Definitely gives the stock exhaust some much-needed oomph.

My 86 currently has the stock exhaust with goat's belly removed. It's OK, sounds fairly sporty, but I really can't wait for a deeper rumble.

1986 Kawasaki Vulcan 750
NGK Iridium Plugs #7803/DPR7EIX-9
Duralast Gold ETX15 AGM Battery
Coastered & Shaved
TOC MCCTs
Metzeler ME880 [110/90-19, 170/80-15]
Balance Dampers Replaced
Tuxedo Mod
Rebuilt Forks w/ Progressive Springs
V&H Cruzers
VN750.com Grill Cover
Meanstreak Seat
Emgo 23-92411 Handlebars
MOSFET FH012AA R/R


1990 Kawasaki Vulcan 750

1998 Honda VFR800 FI

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1989 Pontiac Firebird Formula 350
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post #3 of 8 (permalink) Old 04-04-2012, 09:49 PM
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Quote:
I drilled 8 3/8" holes in each side. I've also painted my headlight ring flat black.
Exact things I did to mine, except that I have stock Sportster muffs. Did you prep the chrome ring at all before painting ? While installing my windshield some of my paint got scratched off. Epoxy paint, or did you rough up the chrome ?
I did the 3/8 hole in baffle because I can still fill it with a 3/8 self tapping if needed (restore to stock if I move to a state with nasty regs). I didnt drill 8 though.




Last edited by Wolfie; 04-11-2012 at 03:42 PM.
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post #4 of 8 (permalink) Old 04-07-2012, 05:33 PM
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Quote:
Originally Posted by PaleRider View Post
Very happy with the result. I drilled 8 3/8" holes in each side. I've also painted my headlight ring flat black. Enjoy.
By doing that you changed the exhaust backpressure. Hope it works for you. You might want to check the plugs to see if it is running too lean.

I am a motorcyclist, NOT a biker.


1997 Vulcan 750, purchased about a week ago
2006 Sportster 1200 Low
2013 Royal Enfield Bullet 500, converted to carb
2001 Yamaha XT225, heavily modified
2004 Honda Rebel 250
1979 Vespa P200E
2002 Vulcan 750 parts bike
1994 Yamaha XT225 parts bike
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post #5 of 8 (permalink) Old 04-08-2012, 08:01 AM
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where did you drill them ? in the ring in the tail end or in the from the engine side under the heat sheilds

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1994 VN750

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post #6 of 8 (permalink) Old 04-11-2012, 03:45 PM
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I did mine from the rear (Sportster baffles have a solid plate), because I didnt need to remove the muff.....again. And if you do em one at a time, you can gauge bu sound/performance how you did. if'n ya need more, drill more.



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post #7 of 8 (permalink) Old 05-04-2014, 11:19 AM
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Quote:
Originally Posted by PaleRider View Post
Very happy with the result. I drilled 8 3/8" holes in each side. I've also painted my headlight ring flat black. Enjoy.
Did you only do this to the first plate or the plate behind it also, I drilled 4 holes in each of the first plates, and its sounds alright with a little more throat but I want a little more umph
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post #8 of 8 (permalink) Old 05-04-2014, 04:55 PM
..have a vulcan good day!
 
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You posted on a very old 2012 Thread....probly will not get a response from PaleRider

Maybe others experienced riders can assist, I have not performed this mod as of yet.


'86 VN750 13,700 mi -Stock
-Purchased 2008 w/8800mi
Replaced ALL Cables . Kuryakyn LED Voltmeter
SilverStar Ultra 9003/HB2 H4 Headlamp, Jardine Fwd Controls,
Iridiums DPR7EIX-9 & Wires, Tuxedo Mod, Coil Mod, P/U Sensor Mod, Fork Seals,
Splines Lubed - 11/4/2012 - MF AGM Battery
Additional Flashing LED Brake Light on Trunk
Dampers went out @ 13+K !
After TOC MCCT's..... so amazingly quiet I discovered a rattling heat shield on my stock exhaust !
...have a vulcan good day!
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