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Xs1100 1979 bike runs rich and misses stalls when choke is shut off

Bike runs rich and cant get to idle

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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

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Posted on Jan 02, 2017

HDTV GURU
  • 261 Answers

SOURCE: motor bike wont rev above idle weth choke on

This to me sounds like you need a carb cleaning. If you have let the bike sit for an extended time the carberators maybe clogged or gummed up. This has to do with the new gas that is out there now. It is cheap and with the introduction of Ethanol alcohol now it is even worse on being stable for long periods of time. I have seen fuel go bad in as little as 3 weeks.. One quick check you can do is open you fuel tank and smell the fuel. IF it smells like varnish it is probably bad. You can drain the tank and add new fuel and that should solve your problem. Keep in mind, that the carbs need to be drained as well to get the old fuel out of there also. Make sure you have a battery charger going when you start crankin that puppy, because you will need lots of extra juice to get that baby to fire up. If it is starting now and runs on choke, that means your idle jets are clogged. Best repair is to remove carbs and clean idle jet. Unless it is fuel injected.
Let me know how that goes and we can proceed from this point. I am a certified mechanic from MMI as well as a HDTV GURU. Smiles. have a good one.

Posted on Dec 07, 2008

  • 254 Answers

SOURCE: yam ybr125 wont idle off choke,also cannot find idle control scre

you may need to replace your spark plugs

as the idle should remain constant as long as the tune of the bike is good IE oil changes done regularly / plugs cleaned and or gapped , air filter cleaned or replaced all of these can affect your bike.

hope this helps

Posted on Jan 04, 2009

  • 1 Answer

SOURCE: choke problem

The answer is a carburetor cleaning. Todays gas is tough on these motorcycles with small carburetors. The ethol attracts water like a sponge and rusts out your carb.
Take it to a Honda shop and tell them to clean the carb, bike will be back to new once its done. As for your flat spot, there's an enrichment screw right in front of the carburetor bowl. Its tabbed so that your limited on adjusting it. If you take a dremel and are very careful you can grind down the tab so that you can turn it all the way around. I've found that once this is done if you turn it all the way in so its litely seated then then turn it back out about 2 and 1/2 times this should get rid of that flat spot.
Good luck!

Posted on Mar 20, 2009

SOURCE: i have a honda shadow areo 1100 the bike starts

You will have to check the carbs it seems the gas isn't flowing in freely into the float chamber and filling it up.

Posted on Aug 08, 2009

DoubleClutch
  • 376 Answers

SOURCE: How do I clean the carbs on my 1979 Yamaha XS1100?

You need to remove the seat and fuel tank first. Loosen the clamps on the back of all 4 carbs that the air box boots are connected to. Then do the same on the front of all 4 carbs that connect the carbs to the intake boots. Pull the carbs out of the boots and disconnect the choke and throttle cables. Now you got to take the carbs completly apart for a good cleaning and adjustment. If you feel this is to much for you to handle then take it to a good bike repair shop.

Posted on Sep 30, 2009

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1 Answer

Have a problem with a dr650 went to a full stainless exhaust open up the air box fitted 150 main jet .NOW bike runs rich on idle can turn airscrew home and bike will not stop .Could it be a choke prob


If it is running rich you have the wrong size jet fitted, tuning a DR650 uses jets sizes from about 130 to 180 depending what has been done to the engine & bike

Oct 19, 2014 | Motorcycles

1 Answer

How do I adjust fast idle link assembly on weber 34DGEC


http://www.jeepforum.com/forum/f8/weber-34-dgec-carb-too-rich-jets-tune-jeep-4-2-258-a-631105/

read
http://www.wranglerforum.com/f218/34-dgec-weber-problems-126887.html
really its a.
Solex 34 TEIE import that gets a Weber name
that is why tuning data, is missing at webers. site.

what makes you think it was ever tune right.
was it?

http://www.jeepsunlimited.com/forums/showthread.php?531786-Weber-34DGEC-CARB-Conversion-Probs

1: is fuel pressure.
2: is float level checks.
3: is jetting,
4: is no intake leaks, or it will never idle right or stalls. or races.
if its rich (wrong jets) it will race with air leaks
if it lean (wrong jets) it will stall with air leaks.

5: the choke is off for all above. tuning the silly chock is last.
on my cars, i run a manual choke, so ends that.

Jul 26, 2014 | 1983 Jeep CJ7

1 Answer

Will not stay running after choke closed


Hi, Anonymous and the usual suspects are:
1. Fuel cap or fuel tank is not venting properly.
2. Fuel filter clogged.
3. Fuel line pinched or kinked.
4. Float needle and seat sticking.
5. Float level too low.
6. Carburetor bowl vent line clogged/blocked/pinched.
7. Idle adjusting ***** set too low.
8. Air/fuel mixture ***** set too lean.
9. Idle port, transfer ports, slow air jet clogged.
10. Slow fuel jet clogged.
For more information about your issue and valuable "Free" downloads that you will need please Click on the links below Good luck and have a nice day.
Re Bike will not idle with out choke Road Star Forum Yamaha Road Star
Oakys Garage Carb clean Pilot Jet clogged Won run without Choke Carbs 101
http://www.yamahaventure.nl/pdf/servicemanualxvz13tf.pdf
OEM parts for Yamaha
http://www.yamahaventure.nl/pdf/ownersmanualxvz13tf.pdf

Apr 22, 2014 | 2007 Yamaha Royal Star Venture

1 Answer

Wont hold an idle revs up and down


Hi, Anonymous and the usual suspects are:
1. Extremely lean fuel mixture.
2. Dirt, rust, water, or ethanol sludge in the fuel system.
3. Sticky throttle cables.
4. Multiple carburetors not in synchronization.
5. TPS sensor out of adjustment or faulty.
6. Wrong spark plugs for the type of service.
7. Throttle bodies not in synchronization (FI)
8. Faulty O2 sensor.
9. Clogged, stuck, or faulty IAC valve.
10. Aftermarket components not compatible with ECM.
For more information about your issue please click on the blue links below. Good luck and have a wonderful day.
How To Fix 5 Common Bike Issues RideApart
http://www.thegsresources.com/_forum/showthread.php?181491-Bike-in-idle-and-rpm-s-go-up-and-down-then-stall
Total Motorcycle Forums
You wont get this engine revs by itself
Symptoms of Lean or Rich carb settings on motorcycle

Apr 10, 2017 | Motorcycles

2 Answers

2003 harley 1200 custom sportster with 50 miles strats up fine with choke pulled out. once engine is warm and choke is pushed in 50% bike stalls out. have repalaced gas, spark plugs and just took apart...


A 2003 model with only 50 miles?? Wow....well,since youve already taken the carb apart and cleaned it,did you hook up the vaccum line for the VOES switch on the intake manifold? If so,..when you get the bike running,..spray some brake clean around the intake where it bolts to the heads.If the idle picks up,or starts to sputter,..youve got leaking intake gaskets. Which is a good possibility on a bike that old with that few miles on it.The choke essentailly adds more fuel to the motor,and by what your saying,the bike is obviously running lean. Also,...im ASSUMING that you have fresh gas in it,and the petcock is turned on.

Sep 25, 2012 | 2003 Harley Davidson XL 1200 C Sportster...

1 Answer

When take choke off stalls xs1100 1979


Hi, Anonymous and the usual suspects are:
1. Fuel cap or fuel tank is not venting properly.
2. Fuel filter clogged.
3. Fuel line pinched or kinked.
4. Vacuum line from the petcock to intake manifold cracked.
5. Float needle and seat sticking.
6. Float level too low.
7. Carburetor bowl vent line clogged/blocked/pinched.
8. Idle adjusting screw set too low.
9. Air/fuel mixture screw set too lean.
10. Idle port, transfer ports, slow air jet clogged.
11. Slow fuel jet clogged.
12. Faulty fuel pump.
For more information about your issue and valuable "Free" downloads that you will need please Click on the blue links below. Good luck and have a wonderful day.
http://www.xs11.com/forum/showthread.php?t=39523
Bike starts up idles on choke dies with choke off our when warm
Yamaha XS1100SH Service Manual
OEM parts for Yamaha
Yamaha 1979 XS1100E Owner Manual

Feb 16, 2012 | Yamaha Motorcycles

1 Answer

Starts good cold with choke runs bogy until fully


You might be too rich on the pilot jet. (Too large)
Run it for a minute with the choke on, then shut the choke off, and let it run with just a little thrttle till it's warm. If it doesn't "clear" up, your jetting may be off. (The pilot does idle) Pull the plug to see what color it is. Black is too rich. (Too large of a jet)

Dec 08, 2009 | 2005 Suzuki RM 250

1 Answer

My 2005 Sherco 290 trials bike stalls when hot


Best would be to blow compressed air to the jets and also to check and reset the float level.
Hope this helps!

Oct 31, 2009 | 2007 Sherco 4.5i SM

1 Answer

Idle problem likes to shut off at stop sign


First it sounds as if your choke or "starting enrichener" is not closing properly. (With fuel injection this would mean electronics)This will make the bike run rich at all speeds and be too rich to idle properly if at all.
Always check for proper attachment of ground.
Be sure that "custom undertail exhaust" hasn't burned up some wiring too.

Jun 11, 2009 | 1999 Triumph Daytona 955i

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