Question about 1993 Harley Davidson FLSTF Fat boy
Its a 1999 fatboy been sitting up about 6 months i cranked it today after replacing old gas. but i noticed the throttle want throttle the engine and the pet **** has started leaking how can i fix these problems
Hi Mike, 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.
As for the fuel valve leak they make a rebuild it for it. Good luck
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Posted on Jan 02, 2017
Sounds to me like a cracked fuel line. No leaks when sitting still but add the torque of the engine turning over and the vibration and the line flexes enough to leak. If not a fuel line, the weld may be cracked where the petcock mounts to the tank or the petcock itself may be cracked. Is the petcock water trap screwed on tightly?
Posted on Mar 16, 2009
SOURCE: oil leak
Welcome to harley ownership, been through this often on my bikes. The air that is displaced in the crankcase during operation builds up pressure and travels through the motor out to your air cleaner. Based on the age of the bike (no disrespect whatsoever), the umbrella seals more than likely could use replacing. What happens is the displaced air is really a mist of oil and air and as this travels up through the engine its last stop is the umbrella seals, which look like a very small umbrella with a short shaft. The bad news is that unless you want dig into the top end of your motor you are probably going to more comfortable having your shop replace these for you. If you decide to do it yourself repost and we will go from there. Also there are some after market parts that work pretty well too to help most are around $200. Hope this helps.
Posted on Aug 24, 2009
SOURCE: My 1993 fatboy seems to
it sounds like you petcock vavle ( your fuel shut off valve) is the problem its easy to change i would really keep a i on it no fuel leak is a safe thing to have.
Posted on May 05, 2011
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