Tune up for a 2001 fxdxt

Hi Anonymous, call, take a ride or trailer your bike over to your local dealers service/parts department, I'm sure they will be happy to take your Harley Davidson for a test ride if necessary/possible and offer professional advice and assistance concerning your issue. Good luck have a nice day.

you vehicle runs smooth morning , and starts running very rough after the engine start be hot .

It depends on the gear you are in and the speed you are going. If you are lugging the engine at low speed, the compensator sprocket cannot absorb the tremendous power pulses produced by the engine. Your bike is equipped with a manual transmission and a clutch, not an automatic transmission like a automobile. Now, if you cannot hold a steady speed of about forty miles per hour, your engine may be running lean. If it's fuel injected, you need to get a dealer or a shop that can change the fuel mapping to look at it. If it's a carburetor equipped bike, you need to go one step richer on the slow jet.

Good luck
Steve

The check engine light comes only when the computer control unit senses a fault in the electronic controls of the engine and/or the emission system, dozens of faults turn the light on, to know what has developed a problem you must have the system tested using s scanner

It depends on the year model of your bike. This thread says your bike is a 01 FXDXT Super Glide. Since 1994, all Harley engines have been what we call "head breathers". The crankcase ventilation is done through ports in the heads unlike previous years where the engine breathed thorough a port in the lower crankcase. In each version, there are baffles to seperate the oil mist from the air. The later version "Head breathers" were better at this than the earlier versions. Still some oil is blown into the air cleaner and makes the removal and cleaning of the inside of the air filter necessary.

However if there is too much oil building up too quickly, in the head breather models there are small "umbrella" valves in the center part of the rocker box covers that over time become brittle due to head. It's not very difficult to take the top off the rocker box cover and replace these umbrellas if you have the proper tools and know how.

On the twin cam engines, there are six bolts holding the top plate on the rocker box cover. Remove these six bolts and the top plate and the center plate come off the head. The umbrella valve is in the center part. Simply remove the old umbrella and pull in the new on in the proper direction. Replace the rocker box covers with new gaskets.

yes, the rear shocks use air pressure to adjust the ride to exactly the way you like it. Only problem is that you don't want to go to your local fuel station and use their pump. You should have gotten a small hand pump with the bike. If not, you can get one at your local dealership or order an aftermarket pump. It usually takes somewhere around 5 psi for most people, I think. The reason I think is that I've never owned a air suspension bike and never asked anyone how much air to put in the system. Some bikes even have air front forks. Seems the air fitting is in the end of one of the grips or something.

do u have the correct spark plug the one recommended by the manufacturer

If you have the on off and reserve petcock or fuel valve then its not the old vacuum type. If battery good time to check basics so you see fuel squrting into the engine through the carb when throttle turned ? do you actually have spark at the plugs ?

This problem, ironically, might simply be the screen filter on the in tank petcock. The zrx is a gravity fed filter-less fuel system with only the screen to act as a filter. I had the same problem with my black 2001 zrx and did a full tune up before pulling the petcock and cleaning away 9 years of sediment from what appeared to be a very clean tank. I simply purchased a seal kit from Kawasaki before the tear down and waited till the tank was as empty as it would get by riding it. The screen was surprisingly clogged with junk...and once cleaned and reinstalled the bike no longer ran poorly when cold. Im not sure why the bike being warmed up made a difference but it did......now it starts and runs like a champ (colod or hot)!!!

easy
put the bike in gear, rock it backwards to off set the pistons; the stop at the same level; this gives it direction. the normal jump start.

fxdxt