Question about 2007 Harley Davidson FLSTC Heritage Softail Classic

1 Answer

2007 Harley FLSTC loses power while riding

I just replaced the battery and stator and the bike was running fine for awhile. Then in 6th gear the bike feels like it's doing a hard shift and the speedometer drops and comes back to original speed. Now the problem has escalated to loss of power while clutching in to stop or turn. I appreciate any assistance with troubleshooting.

Posted by Anonymous on

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  • Harley Davidson Master
  • 41,781 Answers

Hi Anonymous, and the usual suspects are:
1. Spark plugs in bad condition or partially fouled.
2. Spark plug cables in bad condition or leaking.
3. Spark plug gap to close or to wide.
4. Faulty ignition coil, module and or sensor.
5. Battery nearly discharged.
6. Damaged wire or loose connections at battery terminals,
ignition coil, or plug between ignition sensor and module.
7. Intermittent short circuit due to damaged wire insulation.
8. Water or dirt in fuel system, carburetor or filter.
9. Fuel tank vent system plugged or carburetor vent line closed off.
10. Carburetor controls misadjusted.
11. Damaged carburetor.
12. Loose or dirty ignition module connector at crankcase.
13. Faulty MAP, CKP, and or CMP sensors.
14. Incorrect valve timing.
15. Weak or broken valve springs.
16. Damage intake or exhaust vale.
For a prime suspect please visit website below and good luck:
Big Twin Carb EFI DTC Intructions codes Harley Davidson Forums Harley...

Posted on May 13, 2015

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6 Suggested Answers

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Posted on Jan 02, 2017

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  • 3 Answers

SOURCE: Battery drained while riding

chek your connection where the alternator plugs into your engine casing & spray it with electrical contact cleaner

Posted on Mar 28, 2009

tundrajet
  • 80 Answers

SOURCE: Speedo, turn signals, brake lights, horn stopped working. All else is fine.

Gap your plugs to 38 thou. Check all your bulbs (one burned out will affect the rest) Take a look at all your fuses and make sure they are all ok. Otherwise you are probably looking at a wiring short which will require trouble shooting of the elctrical system. Buy your self a service manual for your bike, this will help you a lot.

Posted on Jun 06, 2009

v2iper
  • 150 Answers

SOURCE: harley sportster clutch

You just need to adjust your clutch cable.

Posted on Jun 27, 2009

  • 850 Answers

SOURCE: I think I have a bad stator on my 2002Harley Dyna

too many variables !
Firstly check battery under load ! any battery place or auto electrician can so it usually free!
do this before replacing any thing else!
make sure all connections are clean & tight
if battery is ok get them to check the charge rate on bike! its a simple test or you can do it with a volt meter they are only cheap to buy!

Posted on Jul 18, 2009

joecoolvette
  • 5660 Answers

SOURCE: 02 classic loses all electrical power randomly while riding

I'm going to give you a solution based on personal experience.

I have a 1971 FLH, 1200cc. 16" front wheel, wide glide front end. One main breaker, for all power leading from the main switch on the dash.

I would ride for exactly 8 miles, and the bike would cut off.
Nothing. Nada. Just pull over to the side of the road, and let the circuit breaker cool off. (About the length of one cigarette) Then I'm on my way again for 8 miles.

Tore the seat off, rear wheel out, dash off, headlight nacelle apart, and started checking all wiring.
Found a few breaks in some of the insulation of the wires, found where someone used tape instead of heat shrink tubing. Fixed it. Tried riding again, same thing.

Went through a few more procedures. (I am a Harley mechanic on the older ones)
Finally one day I took the headlight out again, and looked for a short. (I had narrowed it down to something to do with the headlight)

Didn't see anything apparent again. Noticed this time though, that the plastic connector to the headlight, was open on the back.
All three terminals of the headlight, that went into that plastic socket, were exposed at the back.

Having just worked on my Chevy truck, I remembered that the plastic headlight socket, is Enclosed on the back.

Went back to my bike, looked REAL close with a flashlight, and saw a 1/8th inch black mark on the triple tree. The headlight terminals are too far away to create a short?

Removed the plastic headlight socket out of my truck, put it on the Harley.

Has Never quit on me since!

[Hey, we're talking my Harley to a truck! I did get another headlight socket for the truck later!]

Posted on Sep 20, 2009

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1 Answer

2007 Heritage rotor and stator replacement. Do I need to remove the inner primary case to get the rotor off the stator?


Hi, Bob 4 out of 5 Harley Gods say "NO" but it wouldn't hurt to call your local bike shop besides you will be able to tell once you have the outer primary cover off, for this scenario you will need your service/owners manual if you can not find the first and best tool you ever bought for your Harley, despair not, for a mere zero $ you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please click on the links below and for more specific information or questions at no charge please feel free to contact me at xlch@mail.com. Good luck and have a wonderful day.
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1 Answer

2007 flstc charging system


Hi Anonymous, perform the following tests:
1. Fill acid type batteries to proper levels.
2. Charge battery overnight at 1-2 amps you need 12 volts or better after charging.
3. Make sure all connections are clean and tight especially the negative cable at both ends.
4. Hook up volt meter to battery and start engine, if meter falls below 9.5 v replace battery.
5. With engine running at 3600 RPM battery should read 14.3-14.7 volts if not continue tests.
6. Unplug voltage regulator from alternator at crankcase by front of primary cover.
7. To test voltage regulator go to: https://www.youtube.com/watch?v=F8EjV0IjW9Q
8. With ohm meter, one lead grounded, touch alternator pin meter should read infinity, if not replace stator.
9. With ohm meter, both leads touching alternator pins meter should read 0.1 to 0.2 ohms on 1989 and later models. 0.2 to 0.4 ohms 1988 and earlier models, if not replace stator.
10. With volt meter set on AC scale, both leads touching alternator pins meter should read
16 to 20 volts AC for every 1000 RPM'S 1989 and later and 19 to 26 volts AC for every 1000 RPMS. If not replace rotor. Good luck

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2007 Boulevard C90T - Battery seems to not be charging. After a few hours of riding, the battery starts to lose power. I have tested with a volt meter and I get about 13.8 volts when idling, so it looks...


I have a 2006 C90T and had the exact same issues. I have no great solution for you other than to tell you that in my case it turned out to by the stator. This is one of the only known reliability issues with this bike. With the regulator and stator setup on the standard C90 the stator is basically 'running' all the time due to the type of regulator/rectifier. What myself and many other have done is to replcae the regulator with Cycle Electric CE602 (made for Dynaglide Harley). This type reduces the load to the stator hopefully extending the life of the stator. The CE602 is much larger than the stock one and will have to be relocated. All my power issue went away once upgrading to a better charging system. To be sure though I would get it into a shop to have them test it right.
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1 Answer

94 flstc. On first start-up, 35 AC stator, 14.5 v off battery. About 15 minutes into ride, lights dim to near nothing, battery always needs a charge after even a short ride. Regulator?


It sounds to me to be the battery. if you have a digital volt meter charge up your battery and first with the bike off check your voltage at the battery if this is between 13 and 14.5 volts that's a good voltage (but the cca ((cold cranking amps)) can be off) after you've gotten your voltage start the bike and test for voltage at 3000 rpm or 10% throttle if the voltage is over 16 volts or has not changed and starting to drop, check the connection to the stator and regulator located at the front of the primary chain case on the inner primary and that the long single wire from the regulator to the battery is good check 3000rpm voltage again if this did not fix the problem then you may have a problem with your voltage regulator.

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1 Answer

Loses power in 6th gear


Not much to go on here. Power loss in a high gear would likely be attributed to carburetor. No bike, no year, no info, little tough to help you. The throttle would likely be fairly wide open in 6th gear where the bike would have the least power and would be calling for gas and probably not getting enough- or possible to little/too much air. Either way if runs in lower gears it isn't likely to be plugs or ignition, timing, valves or other obvious mechanical stuff.


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While riding all lights started to flash engine run erratic bike died of death bike will not start


Start with charging and load testing the battery. Then test the stator, to test the stator on the bottom of the right down tube is the plug that goes from the stator to the voltage regulator. With a multi meter, read the voltage from the stator, I forget the exact values but as you rev the motor the voltage should climb if it dosn't your stator is bad. If the stator is good take a reading again with the motor running at the battery cables, again I forget the exact value but you should have a steady reading at the battery, if it isn't and fluctuates it is bad.

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STALLING AND LOSING POWER WHILE RIDING


If battery is running down. The engine may not be charging the battery. Check charging system. If running on battery, the bike will run fine for awhile then die as the battery can no longer provide spark to the engine. If charging system is less than 13.0 volts could be a ad stator or regulator. Make sure the battery posts are clean, a bad ground can cause problems too.

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Engine cuts out


Sounds like mine when the stator was starting to fail.

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