Cleaning up the Carburetor
#1
Cleaning up the Carburetor
2003 Sportster 883
It coughs from time to time at lower RPM and usually in the colder weather - under 70s. My research has lead me to believe that it's the carburetor. I have no clue if it was ever serviced, but I don't know that the air mixture screw is still plugged - inaccessible unless you drill out the plug, so it's time for a clean up
First thing first, I'm ordering the carb to manifold seal and I wanted to make sure it's the correct one: Orange Cycle Parts Carburetor to Manifold Seal for Harley Sportster XL, Tour Glide FLT, FXR, Softail, Dyna 1989-2017 Repl. # 27002-89 https://a.co/d/98YMxxb
I'd appreciate if someone can confirm this for me.
It coughs from time to time at lower RPM and usually in the colder weather - under 70s. My research has lead me to believe that it's the carburetor. I have no clue if it was ever serviced, but I don't know that the air mixture screw is still plugged - inaccessible unless you drill out the plug, so it's time for a clean up
First thing first, I'm ordering the carb to manifold seal and I wanted to make sure it's the correct one: Orange Cycle Parts Carburetor to Manifold Seal for Harley Sportster XL, Tour Glide FLT, FXR, Softail, Dyna 1989-2017 Repl. # 27002-89 https://a.co/d/98YMxxb
I'd appreciate if someone can confirm this for me.
Last edited by npn; 08-10-2024 at 11:16 AM.
The following users liked this post:
John Harper (08-10-2024)
#3
You should replace all three intake manifold seals. Especially the two that seal the manifold to the heads. A good carb rebuild will put a smile back on your face. It's a very simple carburetor, so just take your time and enjoy the learning experience. We're here to help if you need it, good luck.
I'd just order a carb kit that comes with all you need. Take note of what size jets you are running. A 45 pilot is recommended if you have a 42, and probably a 170 mainjet would work well in your 883 if you've put on any aftermarket mufflers and aircleaner. A muffler/exhaust change usually requires some tuning, just doing an airfilter swap not always needed. Take a look at your plugs before you begin for reference.
John
I'd just order a carb kit that comes with all you need. Take note of what size jets you are running. A 45 pilot is recommended if you have a 42, and probably a 170 mainjet would work well in your 883 if you've put on any aftermarket mufflers and aircleaner. A muffler/exhaust change usually requires some tuning, just doing an airfilter swap not always needed. Take a look at your plugs before you begin for reference.
John
Last edited by John Harper; 08-10-2024 at 11:33 AM.
#4
The following users liked this post:
John Harper (08-10-2024)
#5
Yep, here you go:
https://cv-performance.com/
And, they will ship to Illinois! I had to trans ship to my sister in MO in order to get parts to me in Xouthern Kalifornia. They have a comprehensive product line.
Myself as well, have not touched the carb in almost 4 years since I did my 1250 motor upgrade.
John
https://cv-performance.com/
And, they will ship to Illinois! I had to trans ship to my sister in MO in order to get parts to me in Xouthern Kalifornia. They have a comprehensive product line.
Myself as well, have not touched the carb in almost 4 years since I did my 1250 motor upgrade.
John
Last edited by John Harper; 08-10-2024 at 12:11 PM.
#6
Pictures
Plugs, SE air filter, aftermarket pipes?
This is how I got it. A guy at the dealer said the air filter was aftermarket, but I think it's stock. I do think the exhaust pipes are aftermarket tho - this girl is loud
Spark plugs look fine tho probably old (?)
This is how I got it. A guy at the dealer said the air filter was aftermarket, but I think it's stock. I do think the exhaust pipes are aftermarket tho - this girl is loud
Spark plugs look fine tho probably old (?)
Last edited by npn; 08-10-2024 at 06:23 PM.
#7
I also took a short video hoping that she would cough, and she didn't except one hiccup:
The whole video is over 10 minutes and youtube lowered the quality of it and I don't expect people to watch the whole thing, but it would be helpful to hear your thoughts. Here are some interesting points:
3:30 you can hear it idle, and me blipping the throttle - I think it's running lean, isn't it?
3:55 - the hiccup - you can barely hear it
8:50 - sped up to about 60 mph towards the end, can't complain about how it accelerates
The whole video is over 10 minutes and youtube lowered the quality of it and I don't expect people to watch the whole thing, but it would be helpful to hear your thoughts. Here are some interesting points:
3:30 you can hear it idle, and me blipping the throttle - I think it's running lean, isn't it?
3:55 - the hiccup - you can barely hear it
8:50 - sped up to about 60 mph towards the end, can't complain about how it accelerates
Last edited by npn; 08-10-2024 at 06:21 PM.
Trending Topics
#8
#9
#10