I have a 1989 FLHTC which i've owned from brand new.I'm having a problem with it cutting out like it's out of fuel when it warms up after riding for about 10-12 mile. It will die out then come back on then die and so on. It starts fine, if i pull over and shut it off it will start good. Then it will do the same thing again on and off. It's getting lots of fuel. Any thoughts on this.Can the ICM give symptons of like running out of fuel?

 

Yes actually, I had a 98 DWG that would do the same thing at highway speeds and turned to be the 'Brain', thats where I would start my troubleshooting.

 

the sensor is under the cam cover- you could have a rubbed wire, or the sensor may have gone wrong ( some techs will spray a can of "cool stuff" to see if the system craps out or gets better.

the ignition module is under the right side cover, you could unplug and plug back in, see it that helps solve a bad connection.

the crane hi4E is a great replacement- you can set up for dual fire ( coil for each plug) if you want.

there is also an evo forum, you may want to check there.

most guys on this forum have late model bikes.

you may save yourself alot of trouble if you were to get a tech to go over the bike and check the ignition system and the carb and intake manifold etc. the fuel screen on the petcock
new plugs and wires, a basic tune up


mike

 

I would really look at the fuel system before jumping into the ECM. Really sounds like fuel filter/line/cap/vent? Electrical problems are usually more random and inconsistent?

 

I had this problem with my '88. Turned out to be the chrome coil cover shorting out the lower spark plug wire.

 

Although its been some time ago, my module was pretty consistant in the way it would act. The way I remember it, it would need to run at highway speeds for 30-40miles then it would start to cutout as if it was running out of gas or a plug was fouling. Harley couldnt get it to fail because they didnt take it out long enough. I figured it out for myself and problem was solved after replacing the module. Not saying thats what the OP has going on but I am saying it sounds very familiar....individual results may vary.

 

Well i know that's it's getting fuel, i've rebuilt the carb andit just seems that that's the next step is the ICM.

 

I've seen a cracked coil (to spark plugs) give those results.