Velocity Stacks on CV Carbs...I just read the PSA on running pods

R

ruler7171

New Member
I am working on my first ever build, a 1982 Suzuki GS450TXZ. The bike has Mikuni CV carbs, BS34's. I like the look of pods, but I have read over and over that the pods are a pain in the rear to tune and there are a lot that needs to be addressed when using them. So my questions are...

1. Do CV carbs typically run well when velocity stacks are used?

2. My stock jets are main=115 and pilot=17.5. I had to cut the stock mufflers off and plan to use Shorty Mufflers from DCC like the ones in the link below. What size jets would you start out with to get the carbs dialed in?
http://www.dimecitycycles.com/vintage-cafe-racer-caferacer-bobber-brat-chopper-custom-motorcycle-exhaust-parts-16-inch-shorty-cherry-bomb-muffler-80-45700.html
 
no one can tell you which jets,that is the hell of it
my suggestion is stick with the stock airbox,make some midpipes for the new muffs so the overall length is correct and ride the bike for the season.... upgrading OTHER things,
carburetion can be the most maddening thing to work out and for what, a look ?
 
xb33bsa said:
no one can tell you which jets,that is the hell of it
my suggestion is stick with the stock airbox,make some midpipes for the new muffs so the overall length is correct and ride the bike for the season.... upgrading OTHER things,
carburetion can be the most maddening thing to work out and for what, a look ?
Click to expand...

So you're saying put a piece of exhaust between where I cut the stock exhaust and the new muffler to get the overall length of the exhaust close to where the stock mufflers would have ended? Do you think there will be any rejetting necessary due to an aftermarket muffler?
 
yeah more os less close to the original overall length
there are formulas to figure it for optimum but just putting the mufflers on your header pipes will be too short for optimum perf
as far as jetting it may need some tweaking with the aftermarket mufflers but not near as much as it will need if you muck around with removing the airbox AND the pipes all at once
making one change at a time is the smarter way to go about it
getting it tuned with the mufflers will help you to learn without it being a darn near impossible deal to work out
 
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