Jet question.
HDF Community Team
Joined: Dec 2005
Posts: 5,404
Likes: 2,605
From: NC USA
Yeah, a CV will never have the same split second "right now" blast on a quick throttle twist as other carbs but you can get them close. The needle that's in it will make a lot of difference on low speed throttle response, but options there are very limited these days... It's all relative to everything else and a lot depends on how you intend to ride and good response doesn't have to sacrifice mileage, especially below 60 mph.
I can't imagine trying to tune a CV to open ground pounders on a Dresser but the 13 is a good cam for a heavy bike. Do a 48 at about 2 turns as mentioned and go from there, shouldn't need more than 1/4 + or - to get you close.
I can't imagine trying to tune a CV to open ground pounders on a Dresser but the 13 is a good cam for a heavy bike. Do a 48 at about 2 turns as mentioned and go from there, shouldn't need more than 1/4 + or - to get you close.
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1st Gear
Joined: Mar 2021
Posts: 5
Likes: 1
From: Florida
Im using the stock needle. Ok so I changed to the 48 and left the 180. It dose have what I think it needs but since Ive started this change from the quicksilver to a cv it can be cold or hot and it shuts off not while idling but in gear I can pull in clutch and fire it back up.it maybe a diff issue Other then this it runs great. Thank you guys for all your info on this.
Road Warrior
Joined: Apr 2018
Posts: 1,347
Likes: 820
From: Moneta, Virginia
so, what youre saying is; motoring down the road, it cuts off when you close the throttle?
If thats the case, I think its either a needle jet issue or the slow jet adjustment screw setting. You might try turning the adjustment screw out 1/2 turn, then another 1/2. If that doesnt solve the problem you might want to change the needle or needle jet.
If thats the case, I think its either a needle jet issue or the slow jet adjustment screw setting. You might try turning the adjustment screw out 1/2 turn, then another 1/2. If that doesnt solve the problem you might want to change the needle or needle jet.
Seasoned HDF Member
Joined: Nov 2006
Posts: 5,889
Likes: 1,903
From: East Coast, USA
Have you tried using the 1988 1200 Sportster needle?
HD Part Number: 27094-88
27094-88
http://www.nightrider.com/biketech/hd_cv_mods.htm
http://www.nightrider.com/biketech/hdcvcarbappendix.htm
HD Part Number: 27094-88
27094-88
http://www.nightrider.com/biketech/hd_cv_mods.htm
http://www.nightrider.com/biketech/hdcvcarbappendix.htm
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