EVO All Evo Model Discussion

Bike shuts off when hot.....

Thread Tools
 
Search this Thread
 
Old May 17, 2020 | 01:11 PM
  #1  
flhchaz's Avatar
flhchaz
Thread Starter
|
Stellar HDF Member
10 Year Member
Liked
Loved
Community Favorite
Joined: Sep 2011
Posts: 3,127
Likes: 1,760
From: In The Woods, PA
Default Bike shuts off when hot.....

My 97 flht (carbed) shuts off when it gets hot. The bike will start right up and will idle fine at 900 rpm wither choke on the super e all the way down. As it gets hot, it just shuts down.

Bike has has a new pingel gas tap and super e - and the tanks is clean.

The cam position sensor is not leaking or melting , but it looks a little crispy where the wires connect to the insulator block

I can’t find anything in the service manual that shows how to test the cps.

Any ideas?? I may order the standard motor parts replacement just to rule it out.

 

Last edited by flhchaz; May 17, 2020 at 01:27 PM.
Reply
Old May 17, 2020 | 01:40 PM
  #2  
Tommy C's Avatar
Tommy C
Seasoned HDF Member
10 Year Member
Joined: Oct 2015
Posts: 13,530
Likes: 34,713
From: Pine Flat Dam/South Bay Area, CA
Default

Did you check for spark when the bike dies?
 
Reply
Old May 17, 2020 | 01:41 PM
  #3  
tomfiii's Avatar
tomfiii
Cruiser
Joined: Aug 2010
Posts: 181
Likes: 13
Default

There should be test in the ignition section; they say to use blow dryer to heat up to see if stalls.
 
Reply
Old May 17, 2020 | 02:03 PM
  #4  
texashillcountry's Avatar
texashillcountry
Dirt don't hurt
Veteran: Navy
15 Year Member
Top Answer: 1
Top Answer: 3
Joined: Jan 2011
Posts: 21,065
Likes: 4,561
From: Haslet Texas
Default

Originally Posted by flhchaz
My 97 flht (carbed) shuts off when it gets hot. The bike will start right up and will idle fine at 900 rpm wither choke on the super e all the way down. As it gets hot, it just shuts down.

Bike has has a new pingel gas tap and super e - and the tanks is clean.

The cam position sensor is not leaking or melting , but it looks a little crispy where the wires connect to the insulator block

I can’t find anything in the service manual that shows how to test the cps.

Any ideas?? I may order the standard motor parts replacement just to rule it out.
When wires look crispy that's usually a good indicator that a short has happened.
I'd replace the CPS and go from there.
 
Reply
Old May 17, 2020 | 02:32 PM
  #5  
flhchaz's Avatar
flhchaz
Thread Starter
|
Stellar HDF Member
10 Year Member
Liked
Loved
Community Favorite
Joined: Sep 2011
Posts: 3,127
Likes: 1,760
From: In The Woods, PA
Default

Thanks for the replies. I ordered the new cps. For $40 and free shipping, it’s hard to go wrong.

I didn’t check for spark. If the new cps doesn’t fix it, I’ll go deeper into troubleshooting
 
Reply
Old May 17, 2020 | 05:13 PM
  #6  
98hotrodfatboy's Avatar
98hotrodfatboy
Seasoned HDF Member
15 Year Member
Liked
Loved
Joined: Mar 2010
Posts: 21,116
Likes: 7,640
From: Poolville
Default

Originally Posted by flhchaz
Thanks for the replies. I ordered the new cps. For $40 and free shipping, it’s hard to go wrong.

I didn’t check for spark. If the new cps doesn’t fix it, I’ll go deeper into troubleshooting
If If anything it's a great tool for $40... I would do an ohms test on the coil though as well...
 
Reply
Old May 17, 2020 | 05:34 PM
  #7  
bagga's Avatar
bagga
Elite HDF Member
Joined: Mar 2006
Posts: 3,673
Likes: 606
From:
Default

I don't know if your bike has circuit breakers or not. if it has them, I would replace the main breaker and all the 15 amp breakers too.
 
Reply
Old May 17, 2020 | 05:41 PM
  #8  
TSheff's Avatar
TSheff
Seasoned HDF Member
10 Year Member
Liked
Loved
Top Answer: 5
Joined: Feb 2013
Posts: 11,323
Likes: 3,661
From: SE Texas
Default

Originally Posted by 98hotrodfatboy
If If anything it's a great tool for $40... I would do an ohms test on the coil though as well...
Bikes, cars, and trucks of age, symptom when it heats up or after it runs a while is shuts off. Well it's not the air, it's still there. Carbed won't be fuel. What's left???? - SPARK.

I vote coil. As stated earlier, troubleshooting process for ignition will save throwing money at it.
 
Reply
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

7 Times Harley-Davidson Chucked Tradition Out the Window

 Verdad Gallardo
story-1

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-2

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-3

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-4

Killer Custom's Jail Break Is The Breakout That Refused to Blend In

 Verdad Gallardo
story-5

Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

 Verdad Gallardo
story-6

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-7

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
story-8

10 Motorcycles You Should Never Buy

 Joe Kucinski
story-9

10 Things Harley-Davidson Needs to Fix in 2026

 Verdad Gallardo
Old May 17, 2020 | 06:34 PM
  #9  
Bass Player's Avatar
Bass Player
Grand HDF Member
5 Year Member
Liked
Loved
Top Answer: 1
Joined: Aug 2018
Posts: 4,126
Likes: 2,117
From: W. MI.
Default

Originally Posted by TSheff
Bikes, cars, and trucks of age, symptom when it heats up or after it runs a while is shuts off. Well it's not the air, it's still there. Carbed won't be fuel. What's left???? - SPARK.

I vote coil. As stated earlier, troubleshooting process for ignition will save throwing money at it.
I second the coil possibility. The wires looking a little crispy need attention anyway, cause or not.
 

Last edited by Bass Player; May 17, 2020 at 06:36 PM.
Reply
Old May 17, 2020 | 06:51 PM
  #10  
TSheff's Avatar
TSheff
Seasoned HDF Member
10 Year Member
Liked
Loved
Top Answer: 5
Joined: Feb 2013
Posts: 11,323
Likes: 3,661
From: SE Texas
Default

Originally Posted by Bass Player
I second the coil possibility. The wires looking a little crispy need attention anyway, cause or not.
Tell you how to test crusty wires. Go riding in the rain. You'll only do it once and when your leg gets tired of holding it our, you'll get new energy.
 
Reply



All times are GMT -5. The time now is 12:52 PM.

story-0
7 Times Harley-Davidson Chucked Tradition Out the Window

Slideshow: Harley-Davidson built its reputation on nostalgia, but every so often, the company took a hard left turn into the future.

By Verdad Gallardo | 2026-05-20 11:18:19


VIEW MORE
story-1
7 Surprising Harley-Davidson Products that Are Not Motorcycles

Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.

By Verdad Gallardo | 2026-04-29 16:50:35


VIEW MORE
story-2
8 Best Harley-Davidson Motorcycles Ever

Slideshow: Not every Harley gets it right, but these are the ones that genuinely earned their reputation.

By Pouria Savadkouei | 2026-04-15 14:23:21


VIEW MORE
story-3
10 Worst Harley-Davidson Motorcycles Ever

Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.

By Pouria Savadkouei | 2026-04-01 20:01:09


VIEW MORE
story-4
Killer Custom's Jail Break Is The Breakout That Refused to Blend In

Slideshow: Killer Custom's "Jail Breaker" build focuses more on stance and visual aggression than mechanical overhaul.

By Verdad Gallardo | 2026-03-18 19:20:32


VIEW MORE
story-5
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.

By Verdad Gallardo | 2026-03-07 16:15:30


VIEW MORE
story-6
Harley-Davidson Reveals Super Cool Cafe Racer Concept

Slideshow: Harley-Davidson's new RMCR concept revives the café racer formula with modern hardware-and it may be exactly the reset the company needs.

By Verdad Gallardo | 2026-03-04 12:23:37


VIEW MORE
story-7
Engraved Rebellion: Inside Bundnerbike's Glam Rock II

Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.

By Verdad Gallardo | 2026-02-24 18:19:44


VIEW MORE
story-8
10 Motorcycles You Should Never Buy

Slideshow: There is no shortage of great motorcycles to buy, but we would avoid these ten.

By Joe Kucinski | 2026-02-19 14:50:51


VIEW MORE
story-9
10 Things Harley-Davidson Needs to Fix in 2026

Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.

By Verdad Gallardo | 2026-01-13 18:33:17


VIEW MORE