Hot start issues, HELP PLEASE

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Apr 13, 2014 | 08:41 PM

#11

KEYBEAR

Road Master

Joined: Mar 2013

Posts: 1,040

Likes: 0

From: Indiana

Quote:

Originally Posted by rooti

have you ever changed out the fuel filter? I think the problem is inside the tank either fuel pump, fuel hose, fuel pump relay, or clogged uel filter

WHAT HE SAID you should hear the fuel pump run if not you found the problem .

Apr 13, 2014 | 09:55 PM

#12

Gommee

Devil's Advocate

Joined: Jun 2010

Posts: 2,070

Likes: 36

From: Alberta, Canada

If the pump does not prime and you cannot hear the pump run, you have an electrical problem. A clogged fuel filter will not stop the pump from making noise. It will still try to suck fuel and vibrate.

Apr 13, 2014 | 10:04 PM

#13

Phillymiked

Cruiser

Joined: Dec 2012

Posts: 101

Likes: 0

From: Philly

I know it's a completely different animal, but my car had the same problem. It would run fine till I turned it off. And when I would try to start it from a store run, it wouldn't start, but when it cooled down it would start right up. It was a fuel pump. It is cooled by the gas, and when your gas gets low, it overheats, and overtime it just burns out. You can check it somehow by checking how much power it draws when the bike is running and compare to what it is supposed to be. A bad one will draw more power. Hope this helps you out

Apr 14, 2014 | 08:39 PM

#14

HATZO1

Thread Starter

Tourer

Joined: Sep 2007

Posts: 479

Likes: 1

From: Sharpsburg,GA

Quote:

Originally Posted by Gommee

I can verify it does not prime when this happens. Once it will finally prime the bike fires off with in one or two rotations and we are on our way. Not sure where to go from here. Makes me think fuel pump or something along those lines as it gut off on me like it lost fuel while riding after the hard start. But Im pretty damn sure I have found the initial cause just not the solution yet. Time to hit the repair manual .

And thanks everyone for their input...

Chris

Apr 14, 2014 | 08:59 PM

#15

HATZO1

Thread Starter

Tourer

Joined: Sep 2007

Posts: 479

Likes: 1

From: Sharpsburg,GA

Well I found an older thread and I think I might have found a good place to check. As I have had issues with corrosion . Im crossing my fingers and am going to try to get my *** to the dealer to get both relays just to be sure.
https://www.hdforums.com/forum/dyna-...n-problem.html

Apr 15, 2014 | 09:09 AM

#16

f4stunter

6th Gear

Joined: May 2007

Posts: 13

Likes: 4

From: Arkansas

The fuel pump relay is always a cheaper place to start. I've had them go out on cars, trucks and bikes. If you clean the electrical connections and replace the relay, and you still end up with the same intermittent results, then replace the "expensive" Fuel Pump. I had a Thunderbird that's fuel pump would quit when hot outside, but the relay and electrical connections are cheaper and easier to test out first.

Apr 15, 2014 | 12:30 PM

#17

JaronB

Ultimate HDF Member

Joined: Dec 2008

Posts: 5,120

Likes: 17

From: Indiana

I had these issues twice. First is at my 1000 mile mark two weeks after I bought the bike. I was able to limp it home a block at a time cause that's how long it would run. Luckily I was only a mile from the house vs the other 31 miles from the office. The dealer came and picked it up and they said my fuel pump died. It was only pushing a 1/3 of the psi it should have. After that shitty dealer had my bike for 6 weeks they blamed it on the paint job (cleaning solvents) eating away the blades in the pump. It ran like a champ once I got it back. And yes my fuel pump was intermittent. The only time it fired up was when I heard it.

Second time was last year with the same exact symptoms, but my lights wouldn't turn on just the idiot lights. No fuel pump prime and the starter wouldn't engage. That was my main fuse. I would pull It out, scrape it with my nail, but back in and it would fire right up. Went home and pulled every fuse, cleaned them off and put dielectric grease on them and I have not had a problem since. I'm now at 20k miles.

Definitely start with the relays

Last edited by JaronB; Apr 15, 2014 at 12:32 PM.

Apr 15, 2014 | 01:28 PM

#18

HATZO1

Thread Starter

Tourer

Joined: Sep 2007

Posts: 479

Likes: 1

From: Sharpsburg,GA

Yea I figured the relays would be the best place to start. I did have it in to the dealer a few weeks ago for the hard start issue like I said and they found the main fuse was heavily corroded and replaced and applied grease to it and both relays. But not the mini fuses. So I pulled them and cleaned added grease. Did some more searching and found the link I posted and they were having the same issues. The dealer had no issues with the bike once they cleaned the main fuse but they didn't ride it. They just checked it every few hours by cranking it. So it never got hot. I know they wouldnt have pulled the relay and opened it up to check it so like we have said above its a cheap place to start so Im going to get it this afternoon..