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Carbs and Fuel System
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post #1 of 4 (permalink) Old 03-21-2008, 10:10 PM Thread Starter
 
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What is it

Since this is My first Kawi and my first v twin I have a question that may sound stupid, but On my previous bikes if I wanted something done I paid to have it done. but with my Vulcan I have decided to try to do everything Myself. Bought a Clymers and through it and my time on this site I've learned quite a bit already, but what is marbling or coastering exactly????????????
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post #2 of 4 (permalink) Old 03-21-2008, 10:46 PM
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Marbleing is where you put a marble in the lines leading to the reed valves on the top of the cylinders. This part of the bike is to take unburned exhaust gas generated when we decelerate and feed it into the exhaust system where it is burned there. This can lead to the infamous popping sounds our bikes make when decelerating. Marbleing is an easy way to bypass the system and is easily reversable as all you have to do is remove the marbles. This is not a joke!!
Coastering is where you permanantly block off the reed valve system and remove the hoses and the like to more effectively bypass the emissions system. Depending upon where you live and how rabid the gov't is about modifying emissions systems, this may not be the best option as it is not as easily reversed as marbleing when emissions inspection time comes around.
Hope this helps.

Jim W
93 VN 750 "Ursula"
Moved R/R 08Sep06
R/R rewire 17Feb07
New R/R, Installed 14Jun08
New Stator installed 10 Jun08
Maintenance Free Battery 12Jan08
21480 Miles
VROC #8542
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post #3 of 4 (permalink) Old 03-21-2008, 10:49 PM Thread Starter
 
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explains every thing I've put bbs in the vaccum lines to the egrs on most of the cages I've owned, just never heard it called that before Thanks
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post #4 of 4 (permalink) Old 03-23-2008, 03:03 PM
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Quote:
Originally Posted by Korr View Post
explains every thing I've put bbs in the vaccum lines to the egrs on most of the cages I've owned, just never heard it called that before Thanks
Maybe because marbles won't fit in auto EGR lines? ;D Then again, BBs wouldn't do any good on the 750, either, except maybe to block off that right carb vac line...

Jim

J.D.
Kerrville, TX
'95 Vulcan 750 "Therapy II",
aka "Raggedy Ann"
'95 VN750 project
'03 VN800B "The Little Black"
'04 VN800E Drifter project
'93 VN1500A custom project
VROC #16185
GCVROC #33

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