Marbling, Coastering, caps and more...No More Popping on Decel - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 23 (permalink) Old 01-03-2009, 06:59 PM Thread Starter
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Marbling, Coastering, caps and more...No More Popping on Decel

I've read through the threads on using marbles, replacing the reed valves, rubber caps, and more all in an effort to stop the inherited decleration popping. After putting on the Jardines the popping was more like fire crackers being fired on each release of the throttle. I took a little of everyone's advice and put 5/8" rubber caps from Advance Auto on the reed valves. Then I placed a standard marble in the hose and tucked it neatly behind the capped valve. Looks great, seals things up, took less than 5 minutes to do and can be undone in a nano-second. Then I adjusted the air/fuel mixture to 2 1/2 turns out (seated the screws first then backed them out). The Jardines are loud, but they now have a nice low growl on deceleration that speaks of power and not a 750cc pop corn popper.

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post #2 of 23 (permalink) Old 01-03-2009, 07:44 PM
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Where's the pictures?

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post #3 of 23 (permalink) Old 01-03-2009, 08:18 PM Thread Starter
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Here's the pic of the left side...the right side is the same only on the other side behind the air cleaner housing.
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post #4 of 23 (permalink) Old 01-04-2009, 06:22 AM
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Nice work Cliff, and with the results you wanted!
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post #5 of 23 (permalink) Old 01-04-2009, 11:38 AM
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Very nicely done, now if it was me, when I had a few extra bucks I would invest in the coastering kit that they have on ebay. IMO it make it look a lot cleaner and if youre ever interested in painting the engine it would make it a bit easier as well. I know that you think the Rumblers are loud but as they say "If it's to loud youre to old"...LOL Ride safe bro.

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post #6 of 23 (permalink) Old 01-04-2009, 07:43 PM
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Quote:
Originally Posted by cliffhusn View Post
The Jardines are loud, but they now have a nice low growl on deceleration that speaks of power and not a 750cc pop corn popper.
Love the analogy!


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P.S. OOOOH Crap I have the Satans posting number...WOOOHOOOOO
Better post one ,more. Pretty soon, no one will even know what we're talking about.
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post #7 of 23 (permalink) Old 03-07-2009, 02:07 AM
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So is the popping sound something that is bad for the engine, or is it just that some people don't like it.

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post #8 of 23 (permalink) Old 03-07-2009, 02:40 AM
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Quote:
Originally Posted by Jace Bror View Post
So is the popping sound something that is bad for the engine, or is it just that some people don't like it.
Most people just don't like it.


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post #9 of 23 (permalink) Old 03-07-2009, 03:16 AM
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i must be one of the few that does. it could be deeper though, to give it a big bore sound, suppose drilling baffles and NOT marbling would do that though

Sold 750 (9-09)
Bought '07 900 Classic "LT" (6-09)
Mustand Seat (6-09)
Balanced Carbs (4-09)
Adjusted Mix Screws (4-09)
Drilled Baffles 8 holes (4-09)
R/R Relocated (3-09)
Splines Lubed (3-09)
Metzelers ME880 170/80 in back 100/90 in front (3-09)
Painted flat blak (3-09)
Kuri grips (8-08)
Kuri Longhorn pegs (8-08)
Iridium Plugs (8-08)
Highway bar/ engine guard(FS)
Some saddlebags no idea which ones
Facebook group Vulcan 750 Riders (Invite Only Group)
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post #10 of 23 (permalink) Old 03-07-2009, 10:19 AM
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Quote:
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Where's the pictures?

What we want is the pic of the pipes.

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