Question about 1979 Harley Davidson XLH 1000 Sportster

1 Answer

Im having issues with my iron head its a 79 ...it was first back firing and spuddering in the front cylinder...now its not firing at all in the front but there rear is..im getting spark in both cylinder ...compression is 125lbs....I did have a amf carb on it but I changed it to a bendix ..and is still doing the same. at first it was fouling out the front plug now its not doing any thing even with eather .......plug wires are good coil is good points good..could it be the valves ?

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

  • Expert
  • 151 Answers

Valves are keeping compression decently, bad cams or clearance could still be an issue.

Posted on Apr 01, 2014

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

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

What is the best way to clean the top of pistons on a 2002 Suzuki Intruder 1500?


Hi, Gary and the usual suspects are:
1. Severely discharged or a damaged battery, should have 12.5 volts or better and be able to pass a load test if necessary.
2. Check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
3. Faulty main circuit breaker and or connections.
4. Faulty ignition coil and or connections.
5. Faulty spark plug, oil or gas fouled, wrong heat range or service type, wrong gap, loose in the cylinder head, broken electrode or insulator.
6. Faulty spark plug cables, leaking or broken, internal damage.
7. Faulty ignition module, switch, CKP, MAP, CMP, sensor and or any connector in the ignition circuit could have corroded, loose, or broken pins/sockets
8. Burnt exhaust valve or air leak in the exhaust system.
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.
http://forums.aaca.org/topic/99134-how-to-de-carbon-head-combustion-chambers
Motorcycle Message Board Motorcycle USA
backfires pretty much every time you drop the throttle
http://service.tanga-moteurs.ro/data/Suzuki_VL1500_Intruder_98_00_Service_Manual_BY_DEN.pdf

Jun 20, 2016 | 2002 Suzuki VL 1500 Intruder LC

1 Answer

Get an answer


Head gasket failed or possibly cracket cylinder head. Head will have to come off for complete diagnosis.

Jul 24, 2017 | Cars & Trucks

1 Answer

2002 Suzuki Marauder VZ800 Front cylinder does not fire till bike warms up a bit?


Definately try a spark plug first. What does the old spark plug look like? ( white, oil fouled, melted, metallic?). Usually a fuel issue will make the inoperable cylinder very hot. Might have a loose valve guide in the head, or a bent valve.

Oct 18, 2012 | 2004 Suzuki VZ 800 Marauder

1 Answer

99 audi a4 quattro manual it starts up spudders out and dies but if i give it throttle above 1100 rpm it revs seemingly normal


compression test
check for internal crack in turbo
replace plugs
check for blown head gasket

Mar 22, 2017 | 1999 Audi A4

3 Answers

My 98 grand prix gtp (3800) (L67) wont start...wines then BACKFIRES. everything from the heads up are brand new except the coil pack housing which ironically enough was submerged in antifreeze. however i...


If your firing order is correct(165432), then I would suspect the drenched coil pack. That oily antifreeze will penetrate every nook and cranny of the coil. It's probably shorting out and cross-firing. I would go ahead and replace it. Double check your firing order again. The back cylinders are 2-4-6, counting from to back, but that is not the firing order. The plug wires would attach to the coils in the following order, counting from the front of the coils(nearest to the front of the car)to the rear:1-4-5-2-3-6.Let me know if any of this helps you. Good Luck.

Dec 28, 2010 | 1998 Pontiac Grand Prix

2 Answers

79 harley ironhead 1000cc xlh no spark from coil coil is good and im geting power to both sides of coil


It sounds like your sensor in the timer cavity on the right side of the engine is bad. Disconnect the blue wire from the coil. Take a spark plug out of the engine, put it back in the spark plug wire, and lay it on the head. Turn the switch on and momentarily touch the blue wire to the coil. When you take the wire off of the coil, you should see a spark at the plug. The purpose of the sensor in the timer cavity is to stop the flow of current in the coil and initiate a spark.

Good Luck
STeve

Sep 21, 2010 | 1979 Harley Davidson XLH 1000 Sportster

2 Answers

I need to know the timing order for a 1998 Dodge Caravan 4 cylinder dual over head cam


FIRING ORDER PER 4 CYL.

http://anubiscycle.com/fixya/order98caravan.png

Jan 13, 2010 | 1998 Dodge Caravan

1 Answer

Starter keeps running


i would say in my opinion and im not exactly sure but the gear from the starter motor connecting to the flywheel is locking in place my best bet would be to check this gearing system out and try doing a service on your bike like fluid changes

Aug 13, 2009 | 1979 Harley Davidson XLH 1000 Sportster

2 Answers

01 lincoln ls still spuddering


Most likely caused by a failing coil pack. The dealer can do what is called a stress test on them to see if they are bad or not but this is pretty labor and time extensive because they have to be removed one at a time to test them. If you have access to a scan tool that will read mode 6 data it may show which cylinders are showing some miss fires and you can try and just replace the ones that show a miss fire and see if that works.

Jan 23, 2009 | 2001 Lincoln LS

Not finding what you are looking for?
1979 Harley Davidson XLH 1000 Sportster Logo

99 people viewed this question

Ask a Question

Usually answered in minutes!

Top Harley Davidson Experts

Arnie Burke
Arnie Burke

Level 3 Expert

4514 Answers

Gills Lango

Level 2 Expert

195 Answers

Mike

Level 3 Expert

4336 Answers

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

Answer questions

Manuals & User Guides

Loading...