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CVO Social => Other Topics => Topic started by: longlast on April 19, 2018, 12:59:03 PM

Title: Help for a buddy.
Post by: longlast on April 19, 2018, 12:59:03 PM: I'm asking for a buddy that has an ongoing issue. Below is what he says is going on with his Fat Boy.
Any ideas that I can pass on to him would be appreciated.

Any ideas on my prob. 2000Fat Boy. Intermittent fault over last 2yrs.Engine shuts off as i am riding. Shuts down 4-6miles,leave 30seconds n starts, 200yds shuts down but starts straight away, 1/2mile shuts down and wont start for few mins, anoth mile shuts down but starts straight away. When this happned 2yrs ago pressumed fuel and cleaned carb n all ok until last summer then did it again last year but fuel tap weeping so changed it. Now this week done it every day(carb stripped n cleaned). Tonight on way home mate following saw blue flame from rear exhaust just as shut down. Forums say Bank Angle Sensor or Cam Sensor or Crank Sensor. Dash codes are all showing clear. Any help appreciated as to replace all sensors will cost a fortune.
Title: Re: Help for a buddy.
Post by: SIKBIRD on April 19, 2018, 01:22:45 PM: Check coil pack and plug wires...could be loose, similar thing happened to a buddy, nearly pulled his hair out trying to diagnose, then found the coil pack loose, no more issues
Title: Re: Help for a buddy.
Post by: longlast on April 19, 2018, 03:21:33 PM: Quote from: SIKBIRD on April 19, 2018, 01:22:45 PM
Check coil pack and plug wires...could be loose, similar thing happened to a buddy, nearly pulled his hair out trying to diagnose, then found the coil pack loose, no more issues

Cheers I'll pass it on :2vrolijk_21:
Title: Re: Help for a buddy.
Post by: Sprintkid on April 19, 2018, 04:32:29 PM: I think those have the fuel pump line inside the tank that gets a hole rubbed in and when it gets to half tank it is really running out of fuel. Look inside under the module in tank for a clear ribbed fuel pick up line. Was a well known problem for a few years.
Title: Re: Help for a buddy.
Post by: longlast on April 19, 2018, 07:35:08 PM: Quote from: Sprintkid on April 19, 2018, 04:32:29 PM
I think those have the fuel pump line inside the tank that gets a hole rubbed in and when it gets to half tank it is really running out of fuel. Look inside under the module in tank for a clear ribbed fuel pick up line. Was a well known problem for a few years.

Thanks for input :2vrolijk_21:
Title: Re: Help for a buddy.
Post by: J.D. on April 19, 2018, 08:00:12 PM: Carb or EFI?
Title: Re: Help for a buddy.
Post by: KGB on April 19, 2018, 09:00:35 PM: Quote from: Sprintkid on April 19, 2018, 04:32:29 PM
I think those have the fuel pump line inside the tank that gets a hole rubbed in and when it gets to half tank it is really running out of fuel. Look inside under the module in tank for a clear ribbed fuel pick up line. Was a well known problem for a few years.
Quote from: longlast on April 19, 2018, 07:35:08 PM
Thanks for input :2vrolijk_21:

I believe this model has a carburetor so it would not have a fuel pump
Title: Re: Help for a buddy.
Post by: Twolanerider on April 19, 2018, 09:09:27 PM: Have had failing cam position sensors behave not too different than you're describing.
Title: Re: Help for a buddy.
Post by: J.D. on April 19, 2018, 09:21:27 PM: Need to determine if it's fuel or ignition. Hard to do over the interweb.
Title: Re: Help for a buddy.
Post by: longlast on April 19, 2018, 10:41:03 PM: Quote from: Twolanerider on April 19, 2018, 09:09:27 PM
Have had failing cam position sensors behave not too different than you're describing.

I did say to him to do a ground test on the sensors, but he says he has no codes coming up when it happens.
Title: Re: Help for a buddy.
Post by: longlast on April 19, 2018, 10:42:38 PM: Quote from: Serdvd6 on April 19, 2018, 09:00:35 PM
I believe this model has a carburetor so it would not have a fuel pump

It does have a carb.
Title: Re: Help for a buddy.
Post by: JCZ on April 20, 2018, 07:24:27 AM: Temporary fuel starvation? Check the fuel filter.
Title: Re: Help for a buddy.
Post by: VANAMAL on April 20, 2018, 10:52:14 AM: I think there was an issue at one time with ecm connector corrosion. Clean it up and use electronic grease.
Title: Re: Help for a buddy.
Post by: longlast on April 20, 2018, 02:37:05 PM: Quote from: JCZ on April 20, 2018, 07:24:27 AM
Temporary fuel starvation? Check the fuel filter.

Filters been changed, carbs been overhauled, twice.
Title: Re: Help for a buddy.
Post by: longlast on April 20, 2018, 02:41:11 PM: Quote from: VANAMAL on April 20, 2018, 10:52:14 AM
I think there was an issue at one time with ecm connector corrosion. Clean it up and use electronic grease.

Corrosion connector,..... that's a thought, I'M passing all this on don't know if he's done connector checks.