CV 40 part number differences
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Tourer
Joined: May 2009
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CV 40 part number differences
I'm starting to gather parts to convert the old MM system over to carb. Can someone explain the differences in the first 5 numbers? I know the last 2 are for the year+. I have a 2000 Road King and need to find a carb. Can I use a newer year carb? Older? Does it matter?
4th Gear
Joined: Nov 2009
Posts: 8
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From: Raleigh NC
You're beginning a large job, incase you didn't already know. The ECM or igintion wiring is different ect. But if you are dead set on the conversion. I would use the S&S super G manifold with the Vulcan adapter and a Sreamin Eagle 51mm cv carb. The smaller 40mm cv will be under cutting the performance upgrades you've already done. Just my opinion
Road Captain
Joined: May 2006
Posts: 720
Likes: 2
From: Kansas
I'm starting to gather parts to convert the old MM system over to carb. Can someone explain the differences in the first 5 numbers? I know the last 2 are for the year+. I have a 2000 Road King and need to find a carb. Can I use a newer year carb? Older? Does it matter?
a 50mm carb is too big for a 95" motor, unless all you do is drag race.
Last edited by kansasroadking; Nov 16, 2009 at 08:36 PM.
4th Gear
Joined: Nov 2009
Posts: 8
Likes: 0
From: Raleigh NC
You're right about one thing for sure, the newer the better. You don't want an older carb, ie 93 and older there were some problems with the pin towers for the float. However I have used the 51mm carb on many 95" twin cam motors with great success. We did alot of Dyno and street testing on that carb when I worked at Milwuakee HD. There are a few other bore sizes also availible if someone wants.
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