Question about Harley Davidson XLH 1000 Sportster Motorcycles

1 Answer

I am trying to start a1987 1100sportster had running once for about half hour was popping thru carb and tailpipe tried adjusting carb helped sum i went start and now it wont.

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Brigadier General:

    An expert that has over 10,000 points.

  • Master
  • 4,565 Answers

There could be any number of reasons for the problem that you described. Your spark plugs could be fouled. Sportsters are very sensitive to this and they are notorious for not want to "clear themselves up" like Big Twins will do. Check your plugs to see if they're fouled.
Next, how long has the bike been sitting? If it has sat up for over three or four months, the carburetor is probably gummed up on the inside due the fuel in the float bowl evaporating and leaving the "varnish" behind to plug up the jets in the carb. You need to take the carb off and thoroughly clean it inside. Then, what type of carb do you have on the bike? You say you adjusted the carb but what did you adjust. If you have the stock carb, gently bottom the idle mixture screw then come back out about 1 1/2 turns. If it's an S&S carb, gently bottom the mixture screw and come back out about 3/4 turns. This is a good starting point for the adjustment on either carb. Make sure you've got fresh fuel in the tank as well. Old fuel just won't run right and todays fuel doesn't last but about 6-9 months before it's flat. Be careful about running the engine for times over 15 minutes from a cold start without a fan or something blowing on it. Sitting still and running for extended periods of time can overheat the top end.

Good Luck
Steve

Posted on May 21, 2011

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

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

Hi,
a 6ya expert can help you resolve that 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.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

2 Answers

Black smoke comes from exaust when I start. Could it overfuel and how can I fix it if its a new carb on my 88 2e 12valve


assuning there is nothing major wrong, get some forte injector and use it as recommended. I once had a renault laguna diesel fail an MOT test, a roadworthiness test that is, on emissions...it was absolutely chucking out black smoke but the engine ran well. I put 2 bottles of injector cleaner in the half full tank and went out for an eighty mile drive revving the engine in the lower gears. I returned to the testing station an hour and a half later and the engine was running perfectly.
Alternatively, assuming the engine runs well but is just a little smokey, have it terracleaned, this will remove most of the carbon deposits from the engine/exhaust and should increase the life of your engine simultaneously improving fuel economy

Oct 26, 2015 | Cars & Trucks

1 Answer

Popping,banging,largeflame out tailpipe when it spits


Carbs need to be rebuilt, timing is off

Apr 11, 2013 | Motorcycles

2 Answers

Mower will start up cold, i will mow for a half hour then it sputters and dies. After it sits for a while and cools it will start again, but not as easily as the first time. It will again mow for a while...


The valves DO NEED adjusting every 250 to 300 hours of service. That is why it dies out beleive me. It is not that hard to do if you have a service manual to help you along to perform this task

Jul 09, 2011 | Cub Cadet Riding Lawn Garden Tractor 25hp...

1 Answer

1998 honda valkylrie exhaust popping at idle and sounds like its missing on accel and on cold start


Could be as simple as the carbs need adjusted or there could be air leaking between carbs and heads (intake manifold).
Does it run good once it is warmed up, or does it continue to pop? If it continues to pop, I would try for air leaks around the intake area. If no leaks, adjust carbs.

Apr 12, 2011 | Honda Gl 1500C Flat six Motorcycles

1 Answer

How do i set up the carburetor on a sthil ts400


The ts400 has 2 adjustment screws. First pop out the rubber gromet to see the screws. The one on the left is the mixture, the one on right is the idle Turn the idle screw in a coup[le turns, this will help the saw run a little fast Now screw the mixture screw in till it bottoms .now back it out 1 and a half turn. Press the decom and pull it thru with the , the choke on a couple times, now pull up onthe decom. Try to start it. when it starts, let it runat a fast speed moving the choke off a click or two when the motor warms up, idle the engine as muchas possible, then adjust the mixture screw in or out torun the best. Squeeze the trigger if engine faulters, it's to lean, back mixture screw out slowly, till it suits you. Reinsert the gromet.

Feb 24, 2011 | Stihl Ts400 Cut Off Saw Carb Carburetor...

1 Answer

Saw runs rough thru cut& once thru cut it fails to stay idling


Try adjusting the low speed jet.If that don,t work try cleaning and rebuilding carb.

Nov 24, 2010 | Garden

1 Answer

Briggs & Stratton 60200 series engine intake valve tar


I'm having the exact same problem with a Briggs & Stratton 80202 engine on my Mclane reel mower. I cleaned out the valves and cylinder head, put it back together and it runs nicely. I ran it for about a half hour then turned it off to adjust the blade. A couple hours later I went to start it and no compression. The Intake valve is stuck open with gum from running it for a half hour! The can of gas I have is less than a month old. I'm going to try a different brand of gas.

Jan 09, 2010 | Garden

1 Answer

22 hp Briggs Intek will not run at full speed without choke on


sounds like you sucked up dirt in the carb needs to be taken off and cleaned

Jul 17, 2009 | Briggs & Stratton Briggs Stratton Intek V...

1 Answer

Briggs and Stratton OHV V-Twin 24hp repetitive valve adjustment


Try pulling out the choke a little, if it stops backfiring the mixture is too lean, check the intake
pipes at the cyl head and also the plastic runners to the carb for leaks.
Dennis in Chicago

May 07, 2009 | Briggs & Stratton Briggs Stratton Intek V...

1 Answer

Won't start. i changed spark plug and cleaned carb. it was starting but running at half speed. then it just quit and won't start at all now


Hi,
You might want to try adjusting the carb. Remove the two caps on the screws and turn each screw in 1/2 turn. Then try to start. If it starts then you are good to go. If not try turning in a little more. Once you get it started you might need to back the screw back out a little to get the unit to run "smoothly" once done just put the caps back on or discard (you don't need them.
Good luck!
Mike

May 01, 2009 | Homelite Consumer Products MightyLite...

Not finding what you are looking for?
Motorcycles Logo

Related Topics:

201 people viewed this question

Ask a Question

Usually answered in minutes!

Top Harley Davidson Experts

Arnie Burke
Arnie Burke

Level 3 Expert

4536 Answers

Mike

Level 3 Expert

4340 Answers

yadayada
yadayada

Level 3 Expert

76846 Answers

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

Answer questions

Manuals & User Guides

Loading...