Question about Motorcycles

Open Question

Surging at low speed 1200 sportster

I had the 2 into 2 big radius put on from new and have also put a screaming eagle air cleaner and race tuner put onto it, but it still surging and especially at low speed, how can i fix this???

Posted by on

  • unique_lady0
    unique_lady0 Feb 16, 2012

    when i have tuned this bike, twice now its ok for 1 day then goes back to the surging with any speed under the 100 kilometers, no matter what gear it is in, it also had a flat spot around the 110k's going up a hill as well, this is an 2012 sportster and has now done 5000, k's



5 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

ollie reece
  • 1167 Answers

SOURCE: where is the oil drain plug/bolt on a 2002 harley

Lay underneath the bike on the left side, and look towards the front of the bike, there will be a tube that runs from the back left side of the motor, to the right straight into the side of the frame with a hoseclamp on the end of it. to make sure you have the right rubber line, IT IS THE ONLY LINE WITH A HOSECLAMP ON THE ENTIRE BIKE. loosen the hoseclamp, and then pull the line off the frame (There is a stud welded on the frame, and this hose slides over it, and then the hoseclamp seals it off) This is your drain tube. Make sure the motor is warmed up *(of course) BEFORE you change the oil, let it drain until it's empty. MAKE SURE YOU STAND THE BIKE STRAIGHT UP, OFF THE KICKSTAND FOR ABOUT 15 SECONDS TO MAKE SURE IT ALL DRAINS OUT. Then put it back on the stud, and tighten the hose clamp. Loosen the filter on the front of the motor (it's a spin on car-type) Then replace it, make sure you put a thin film on the gasket of the NEW filter before replacing. It is normal to get oil on the front of the motor, it is unavoidable. it will hold 3 qts with filter.

Posted on Sep 22, 2009

  • 4088 Answers

SOURCE: as i am driving my 2002 Harley Davidson 1200

Removing any baffles from the exhaust will reduce back pressure somewhat causing the engine to run lean. If you can put them back, see if that will stop the backfiring. If so, a carburetor-ed engine can be jetted one step richer to compensate for the lower back pressure. A fuel injected engine will likely need a trip to your dealer to make the engine run richer. Hope this helps!

Posted on Apr 05, 2010

  • 420 Answers

SOURCE: owners manuel for ; 2003 harley davidsonXL 1200custom/screaming e

If you are looking for an owners manuel the best bet is to buy one at a dealer, there is no screaming eagle package. Harley has never made a CVO Sportster.

Posted on Apr 05, 2010

  • 4565 Answers

SOURCE: I have a 2001 Sportster

To begin with, make sure you're putting too much oil in the tank. But, oil blow out into the breather is common on these bikes. Thanks to the EPA, all vented air from the engine must be cycled or run through the engine to be burned. This is why Harley moved the engine breather vents to top of the heads, to reduce the amount of oil in the air vented from the engine. However, it still builds up in the air cleaner and must be cleaned out occasionally. As the engine gets more and more mileage on it, the rings allow more compression to get by them resultling in more crankcase pressure blowing out more oil mist.

I think Custom Chrome and Kuryaykin, aftermarket accessory suppliers, has a kit to relocate the crankcase vent so that you air cleaner is not filled with oil. You can order the kits through any aftermarket dealer and sometimes even you Harley dealer.

Good Luck

Posted on Feb 27, 2011

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

I have 1996 sportster 1200 and it back fires when I down shift it has a screaming eagle air filter on it and can't find stock plugs and jets

Hi Rocky, popping, coughing, spitting, or backfiring through the carburator or induction module can be caused by air getting sucked in combustion chamber do bad intake seals leaking. Leaking exhaust gaskets can also be suspect. Remove air cleaner and backing plate, while engine is idling spray WD-40 or Brake Kleen around intake manifold to head area, if RPM's increase you have an intake leak and seals need to be replaced, also spark plugs will be burning whiter than normal. Good luck

Aug 25, 2013 | Harley Davidson XL 1200 C Sportster Custom...

1 Answer

My speedo does not return to zero when I'm stopped, and reads way higher than the speed I'm traveling, the longer I ride it seems to get closer to zero but not all the way.. I can disconnect the battery...

Hi Outlawexcava, try cleaning your speed sensor located on top of the transmissions right side between the top cover and the chrome starter end cap on Twin Cams and on top of the engine case between the rear cylinder and the starter motor for Sportsters. Remove the the bolt that secures the sensor and pull it out of the transmission. Inspect sensor for obvious damage and repace if necessary. If sensor has no damage then wipe clean any obvious contamination like micro fiberous material with a clean rag and reinstall, torque bolt to 8 ft lbs. Please visit the website below for more information and good luck.
Big Twin Carb EFI DTC Intructions codes Harley Davidson Forums Harley...

Sep 12, 2010 | Harley Davidson FLTR-FLTRI Road Glide...

1 Answer

I want to remove the baffels from stock 06 Sportster mufflers

not a good idea unless you upgrade the air cleaner to a high flow or screaming is tuned to run with restricted pipes..if you change one you need to change the other..with the 06 you could also need a download or fuel management system..

Jul 18, 2010 | 2006 Harley Davidson XL 883 Sportster

2 Answers

What fuel and (oil does) 2003 sportster a XL1200C take?

You need engine oil, usually 20 W 50, and primary case oil, 50 weight.
Depends on your Climate. Cold, you can use thinner oil.
You can buy from a Harley Dealer, Genuine brand Harley Davidson Oil.

Apr 17, 2010 | 2000 Harley Davidson XL 1200 C Sportster...

2 Answers

What kind of oil do i put in to my 2003 1200 sportster transmission?

you can put the screaming eagle syn3 full synthetic 20/50 in your engine,trans,and primary

Apr 06, 2010 | 2003 Harley Davidson XL 1200 C Sportster...

1 Answer

I have a 03 Harley XL Custom Sportster that has a hard time starting both cold and after 4 or so minutes after sitting. Have aftermarket exhaust, K&N air filter. Has new spark plugs. It also pops in...

You are experiencing a lean condition (to much air vs fuel) due to your exhaust and k & n filter modifications. This means you'll have to re-jet you carb so more fuel is introduced so proper ignition can take place. Running lean will result in detonation and big dollar repairs. If you have fuel injection you will have to purchase a fuel/ignition management module i.e. power commander, sreaming eagle race tuner or the like so you can upload the correct air/fuel mixtures as per your mods.

Apr 02, 2010 | 2000 Harley Davidson XL 1200 C Sportster...

1 Answer

Owners manuel for ; 2003 harley davidsonXL 1200custom/screaming e

If you are looking for an owners manuel the best bet is to buy one at a dealer, there is no screaming eagle package. Harley has never made a CVO Sportster.

Apr 01, 2010 | 2003 Harley Davidson XL 1200 C Sportster...

2 Answers

I wish to debaffle o9 1200c

if you are on about the standard exhaust , then you will need a long cold chissel to punch out the washer welded in the baffle to direct air in to sound deadner. hammer the chissel through the washer making hole as big as you can , i did mine while exhaust were still on bike and use a 16mm blunt sds drill bit i had lying around. does create a harsh sound compared to screaming eagles.try the sportster .org site for more info.screaming eagles are the best way to go , i only punhed mine through cause i couldn't strech to carb, air filter and exhaust mod in the same month, it will also affect you efi system ,if you do not do some fueling, and air filter mods, the bike will lean out causing detonation problems and possible damage to engine.

Oct 03, 2009 | 2000 Harley Davidson XL 1200 C Sportster...

1 Answer

Is the timing adjustable on a 2006 harley hdxl1200c sportster

Not unless you have/buy a Screaming Eagle or aftermarket ignition module. What makes you think the timing needs adjusted? It's all computer controlled.

Apr 06, 2009 | 2006 Harley Davidson XL 1200 C Sportster...

Not finding what you are looking for?
Motorcycles Logo

Related Topics:

224 people viewed this question

Ask a Question

Usually answered in minutes!

Top Motorcycles Experts

Arnie Burke
Arnie Burke

Level 3 Expert

4899 Answers


Level 3 Expert

79865 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Are you a Motorcycle Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides