Question about Harley Davidson XL 1200 S Sportster Sport Motorcycles

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Fuel enrichment knob broke i have new cable but manuel does not explain procedure

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To replace the enricher cable on the stock Kiehen CV carb, you must remove the carb from the engine.

Remove the air cleaner cover, air filter, and backing plate. To get the backing plate off, you must remove the two large union bolts that go to the heads on either side of the ari filter backing plate and the three smaller bolts at the mouth of the carb. Loosen the adjustment of the throttle cables at the handlebar throttle grip. Take the nut off the backside of the enricher cable and it fall loose from it's bracket. Disconnect the fuel line from the carb, make sure the petcocik is turned off. Now, twist the carb slightly and pull until it comes out. Make sure you guide the enricher cable out. Once you get the carb out far enough, remvove the throttle and the idle cable from the carb and bring the carb on away from the engine. Now, use a 14 mm wrench to unscrew the enrcher cable from the carb. You'll have to change the elbow, nut, spring, and needle from the old cable to the new cable and reinstall it on the carb.

To replace the carb, guide the enricher cable back between the cylinders. Reconnect the throttle and idle cables on the carb. Replace the intake manifold seal (round rubber boot on the intake manifold) and lubricate it with a bit of silicone spray or something. Push the carb as far as you can into the seal. Reconnect the fuel line and adjust the throttle cables. Make sure you don't get them too tight and that the throttle works like it should. Replace the air filter backing plate, air filter, and air filter cover. Put the enricher cable up into it's bracket and tighten the nut on the backside. Be very careful tightening the nut as the plastic housing breaks easily. Tighten the nut just tight enough to securely hold the cable. Check the operation of the carb and make sure it operates smoothly and correctly. Now, you should be ready to ride.

Good Luck

Posted on Apr 10, 2011


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1 Answer

Fuel enricher adjustment on a 2003 harley 883

Hi Anonymous, if you push the knob all the way in it contacts a threaded piece and knurled button like nut, with a tiny pair of channel locks and a delicate touch tighten that PLASTIC nut it will put friction on the choke knob shaft. Good luck

Jan 25, 2014 | Harley Davidson XLH Sportster 883 Hugger...

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My 04 harley night train keeps fouling plugs left and right i richened the mixture with a 52 pilot jet. ran fine for awhile then fouled again could this be an electrical problem?

A #52 pilot is a bit on the rich side in my opinion. I usually use either a #48 or a #50 but each machine is a bit different and your location effects it as well. I wouldn't think an electical problem is the cause or you'd notice erratic engine performance prior to the plugs fouling such as misfiring, coughing or spitting back through the carb. How long are you running the enricher when cold starting the engine? This is the biggest reason I see for fouling plugs. People will start the engine with the enricher and allow the engine to run while they put their riding gear on, sometimes five minutes at full enrichement. This will foul the plugs quickly. The enricher uses a different fuel circuit than the normal running operation uses. It draws fuel directly from the float bowl and it's a very rich mixture. Try starting the bike with the enricher and once you can keep the engine running with the throttle, turn the enricher off. Use the throttle tension knob underneath the throttle to hold the throttle open enough to keep the engine running until it warms up.

Good Luck

Sep 03, 2011 | Harley Davidson FXSTB Night Train...

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2003 sportster is havin a real hard time starting in the mornings, backfires sometimes while trying

not sure what you have tried but here are a few things that could be the cause

bad or fouled plugs
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plug gap too close or too wide
bad battery
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hope this helps

Aug 22, 2011 | Harley Davidson Bullet 500 Deluxe...

1 Answer

2008 dyna wide glide won't hold idel speed after 15 minutes of running. Changed spark plugs, good for 2 days then same problem back. Bad gasoline?

If the bike is equipped with a carburetor, try not using the enricher (choke) so long. The enricher circuit in the carburetor is extremely rich. I see people let their bikes run for almost ten minutes with the enricher on and they can't figure out why they are fouling plugs. Only run the enricher until you can get the engine to run with the throttle. I use the throttle lock located on the underside of the throttle grip. Just idle the engine up that about 1500-1700 RPM, turn the enricher off, and tighten the little knob just enough to hold the throttle and keep the engine running until it warms up. Prevents you from fouling plugs. If this is not the case or you have fuel injection on your bike, you may need to take it to a qualified mechanic. I don't advise tearing into your carb or fuel injection unless you know what you're doing.

Good Luck

Jul 20, 2011 | Harley Davidson FXDWG Dyna Wide Glide...

1 Answer

How do I set up my beta rev 50 carburetor properly. If going up hill in 2nd bike won't pull from idle, but dies.

Hi, Chasb13 and the usual suspects are:
1. Throttle cables misaligned or misrouted.
2. Damaged or restricted fuel tank venting system.
3. Inlet system air leak.
4. Vacuum piston malfunction.
5. Accelerator pump leaking or no output.
6. Plugged bowl vent.
7. Fuel level in bowl too low.
8. Restricted fuel supply passages.
9. Plugged jets or passages.
10. Worn or damaged needle or needle jet.
12. The enricher valve not seated or leaking.
For more information about your issue please visit the websites below. Good luck and have a nice day.
GASGAS TRIALS carburetor explained Dellorto PHBL
How to adjust the jets on motorcycle carburetors
Pilot Air Fuel Screw Adjustment Explained

Jun 12, 2011 | 2006 Beta Rev50

1 Answer

New to me 98 HD Springer, any tricks to starting in colder weather? Manual says not to give gas, what do the experts say?

"Manual says not to give it gas". This is correct. If your bike is equipped with fuel injection, the electronics control the fuel in a cold weather start.

In the event your bike is equipped with a carb, you must allow the enricher (choke) to do what it is designed to do. Allow me to explain how it works on a carburetor equipped bike.

A choke and an enricher circuit do the same thing, start a cold engine with an over-rich fuel mixture. But, they way they accomplish this is completely different. The choke is a plate in the mouth of the carb that limits the air intake of the carb making the fuel mixture rich. An enricher is a completely separate circuit within the carb. It has it's own venturi that runs parallel to the main venturi. When you pull the enricher, it opens this venturi and a fuel port that comes directly out of the float bowl. This supplies the air and the fuel to start the engine. But, it will only do that if the vacuum is pulling air through this venturi. If you "give it gas" or open the main venturi, the vacuum pulls the air through the main venturi rather than the enricher venturi and the engine does not want to start.

So, this is how I tell people to start their engine when it's cold. First turn on the fuel at the petcock. Then twist the throttle grip twice and go back to full close. Pull the enricher out, turn the switch on and use you index finger to push the start button. Do not open the throttle (give it gas) at all. The bike should start up and go to a high idle when it does start. The point is, when starting a cold engine with the enricher, do not crack the throttle open at all. Leave it shut. If you open it the lest little bit, it renders the enricher circuit inoperative. Leave that throttle shut.

Good Luck

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1 Answer

How do I replace the enrichener cable/knob assembly on a 2001 Harley Davidson FXDWG Dyna Wide Glide? The plastic "tightener" nut is stripped, and the knob is cracked. The parts guy at the...

Ok, the truth is that you must remove the carburetor. Somebody might be able to do it wihout removing the carb but I can't do it. To remove the carb, first take the large nut of the backside of the enricher cable and get if free of it's bracket that holds it on that end.

Now, on the rights side of the bike, remove the oir cleaner cover, the air filter. Remove the backing plate by taking the two large bolts out where the air cleaner backing plate is held to the heads. There may be some rubber plugs in the holes covering the bolts. Once they are out. Start loosening the three smaller bolts that hold the backing plate to the carb. Loosen each screw a little at the time because they are designed not to simply screw out. Once you get them all loose, the backing plate will come off.

Now, take the fuel hose off and there is a vacuum hose connected to the backside of the carb that you must disconnect. Now, grab the carb and wiggle it while pulling on it. It will come out of the seal on the intake. With the carb at this point, you can probably take the enricher cable out using a 14mm wrench. Once you get the cable out, you'll have to swap the spring and needle plunger from the cable to the new cable. Reinstall the new cable into the carb.

Replace the "seal" on the intake and spray a bit of silicone spray on the seal and carb to help you put the carb back in. Push the carb into the seal all the way. Reconnect the enricher cable into it's bolder on the other side of the bike. Reconnect the vacuum hose and the fuel line. Replace the air filter backing plate. At his point, check the throttle to make sure the throttle works like it should. If so, you can install the air filter and cover. Make sure the throttle works as it should.

Good Luck

Mar 14, 2011 | Harley Davidson FXDWG Dyna Wide Glide...

1 Answer

My choke cable wont stay out when i first start the bike so it dies. How do i adjust it? Or do i need a new one?

There is an adjustment on the cable. If you pull the knob out, you'll see a another knurled knob just behind it. If you turn the knob clockwise, it should put more tension on the enricher cable. Never put any kind of oil or other lubricant on the enricher cable. Be careful when tightening the tension knob as the parts are made of plastic and break easily. If it breaks, you must pull the carburetor in order to replace it.

Good Luck

Mar 09, 2011 | 2006 Harley Davidson XL 1200 C Sportster...

1 Answer

What is the process to remove the carburetor on a 2001 Dyna Super Glide FDX. Thanks in advance.

To remove a carburetor, first turn the fuel petcock off if it has an "off" positon. Then take the air cleaner cover, air filter, and air cleaner backing plate off. Loosen the adjustment on the throttle and idle cables (the two cables). Loosen the nut on the enricher cable and allow it to come out of it's bracket. Disconnect the fuel line and the vacuum line for the VOES and the petcock. Now, rock the carb side to side and pull it out of the carburetor intake seal and guide the enricher cable out. When you replace the carb, always use a new carburetor intake seal to prevent vacuum leaks.

Good Luck

Sep 06, 2010 | 2001 Harley Davidson FXD Dyna Super Glide

1 Answer

96 883 sportster with 3000 miles only. Will run only with enrichment knob pulled out when i throttle up it wants to die and spits fuel out carb and pre ignites in carb ran well when was stored not run...

Carbureted Harleys that will only run with the enrichment knob pulled out require a partial disassembly as the slow jet is most like clogged and/or the entire carburetor and fuel system needs to be cleaned &serviced.

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