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Sportster Motorcycle Air intake, Carburetor, EFI, Fuel, and Exhaust Problems, advice and/or how tos for Sporster and Buell motorcycle carburators, Electronic Fuel Injection (EFI), Air Intake, Fuel and Exhaust.

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  #1  
Old 3rd October 2022
Jim2004 Jim2004 is offline
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Default Amazon CV carb

2004 1200XL Has anyone bought a $60 Amazon CV carbureator? Did you have to replace the guts or did it work as is?
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  #2  
Old 3rd October 2022
John Harper John Harper is offline
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Is there a problem with your existing carb? Most anything except physical damage can be fixed. But, back to your question:

The one post I recall reading was that the knockoff CV40 carb worked fine after discovering incorrect jets came with it, an easy fix. I believe that was the only issue. It wouldn't cost much to toss in a genuine Keihin mainjet and pilot jet just to make sure.

I'm interested in your experience if you decide to try one. I've bought a couple cheap knockoff carbs for my friend's dirtbikes, have not had a problem with them as yet. Carbs are pretty simple and usually rather forgiving by not being as precise as EFI.

John
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  #3  
Old 8th October 2022
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bustert bustert is offline
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+1 mr. harper
i have bought these types of carbs for lawn engines and chonda 4 wheelers and such and have not had an issue either.
the stock carb like mr. harper said is an easy fix, just replaced the known issue with the plastic fuel inlet cracking but hey lasted from 2001. the only issue i have now is that the check for the accel pump is getting bad so some of the squirt gets pushed back to the bowl but that fix will require a new bowl around the cost of the knock-off carb.
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Old 8th October 2022
Jim2004 Jim2004 is offline
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Default

Didn't mean to take so long answering you John....In 2005 I had the carb rejeted (new air cleaner and slip on) Bike has run like great till a few weeks ago when I started it up and it started to piss all over the floor!

When I took the carb off I noticed two things, the screws were all buggered and second the O ring on the float chamber looked like the rats had living in there for a long time!!! Easy fix and I foolishly decided to "do it right" and got a rebuild kit. Despite reading the instructions and watching the videos that float pin was not tapered and would not move until it broke off one the of tabs. Did a Russian Farm Boy fix, but I just know that it would work fine until my wife were out 35 miles from civilization and the fix went south....I didn't like the thought of her being pissed about having to help push.

Anyway went and ordered one of the $60 amazon replacements. Looks good but I guess the chinese thinks a sportster is a thumper as they sent ONE spark plug.

Technical question for you please. The guy that did the rejeting and screw head buggering installed a 48 and 190 jet. (like I said it ran better than great) The replacement came with 45 and 170 installed along with a 42, 45 and 48 as well as a 180, 185, 190. Is there any reason for me to change what has worked????

Thanks

Jim
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  #5  
Old 8th October 2022
John Harper John Harper is offline
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What did your plugs look like with the 48/190 combo? Have you refreshed the intake manifold seals, to eliminate any vacuum leaks? Can you access and adjust your idle mix screw on the new carb?

45 pilot seems to be the most common choice. 180-190 main jet for a 1200, look at your plugs. I have a 45/190 in my basic 1250 engine and seems a good combo, plugs and performance both good IMO.

That tapered pin is a treacherous design.

A couple "keeper' tabs cast into float bowl section like other carbs and it could use a straight pin. Who knows. Saved a cc or two in pot metal I guess.

John
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  #6  
Old 9th October 2022
Sporty1989 Sporty1989 is offline
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Wouldn't haven't ordered one from Amazon but that's my 2 cents.
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