Shovelhead A place to talk about Shovelheads.

Working on 1979 FLH-80 I picked up last week

Thread Tools
 
Search this Thread
 
Old Sep 9, 2021 | 05:59 PM
  #1  
Redrodyankneck's Avatar
Redrodyankneck
Thread Starter
|
Stellar HDF Member
10 Year Member
Photogenic
Liked
Top Answer: 1
Joined: Mar 2016
Posts: 2,285
Likes: 965
From: Eastern NC
Default Working on 1979 FLH-80 I picked up last week


I decided to go through the bike so I stripped it down to see if there were any hidden issues under the tons of stuff that came on the bike. I put a cheap solo seat on it and have a minor S&S rebuild kit coming. The ejector nozzle o ring was not there when I removed the float bowl on the bench, so good find there.
Discovered the clutch cable was routed incorrectly, the clip on the bar clamp cover wasn't there so I put one on. This keeps the cable from getting squashed against the tank when the bars are on the left stop. This lifted the clutch cable from behind the shifter linkage, it was wearing out the outer cover of the cable. Went to move the shifter and the linkage came out of the shifter. The C clip that keeps the linkage connected was missing and the clutch cable that was behind it was actually keeping the linkage attached. Another good find.
I pulled off the chain guard to get a good look at things. While peering in towards the trans sprocket I thought I saw an old dirty rag stuffed in there. Oh boy, 1st thought was this was to disguise a sprocket shaft seal leak. This is what I pulled out of there.........

Yes those are giant chucks of granite. They were landed between the chain and the trans case and pulled out with ease. I imagine they would have eventually ruined my day.
Cleaned the underside and found that the primary is not isolated. There was an occasional drip of oil hanging down off the chain lube hose, figured just run off from somewhere.
It kept reappearing, turned out the 3/16 hose was seamed and the seam had opened up. The business end of the hose at the chain was buried in 1" of oil,sand, and crude as it sits directly in front of the rear tire. I just shut off the feed at the pump.
Pulled the battery cover off to check things out and found a sealed battery dated 2/21, nice..... didn't expect that. I cleaned up the connections and grounds, they weren't bad.
Found the rear fender had experienced an acid bath at some point so may have to pull the fender to mitigate, acid appears to have been neutralized long ago as baking soda had no affect.

With the solo seat I can flat foot the bike now. I plan to used it for a short while as I road test the bike.

I know some of you guys are disappointed that I took the bike apart but fear not ............It will be going back together to it's original glory without the bear trap. I have a frame mounted flex seat on the way complete with grab bar, back rest and bracket for attaching it to the rack, thank you Architect.
IMHO The bike has lost it's personality without the bags, guards, fairing and light bars.
 
Reply
Old Sep 10, 2021 | 05:57 AM
  #2  
Architect's Avatar
Architect
Seasoned HDF Member
15 Year Member
Joined: Apr 2010
Posts: 9,524
Likes: 7,861
From: Long Island, New York
Default

Aesthetically, it looks so much better with all of the "garbage barge" crap removed. That is 18 year old me talking.

But today it looks so much more authentic and period correct with the stuff.

Carry on.
 
Reply
Old Sep 10, 2021 | 09:32 AM
  #3  
kink04fxd's Avatar
kink04fxd
Tourer
15 Year Member
Liked
Loved
Top Answer: 1
Joined: Mar 2010
Posts: 425
Likes: 261
From: Mid-Mo.
Default

I think they look good either way. Those long mufflers have got to be hard on the mount bars though.
 
Reply
Old Sep 10, 2021 | 09:57 AM
  #4  
Redrodyankneck's Avatar
Redrodyankneck
Thread Starter
|
Stellar HDF Member
10 Year Member
Photogenic
Liked
Top Answer: 1
Joined: Mar 2016
Posts: 2,285
Likes: 965
From: Eastern NC
Default

Originally Posted by kink04fxd
I think they look good either way. Those long mufflers have got to be hard on the mount bars though.
If I were to keep it stripped down the rear directional bar would have to go along with the aux lights and directionals on the front. I did see that someone mounted the front directionals on the bars like my FXR, The crash bars would need to go too. Then it would look good.

With the bags on they don't look that long but yes there is a lot of leverage going on there, the chrome brackets that hold the muffler body to the frame are STOUT. I had to loosen the mufflers and turn them sideways for the massive light bar to come off. I'll be cleaning up the wiring on that as some stupid used non sealed butt splices. I figured I'd pull the mufflers and brackets at that point and polish everything up on the bench. I lubed up the throttle and clutch cables just now, I was able to slide on some heat shrink tubing on the clutch cable to cover the worn spot caused by the shifter linkage rubbing on it.

 
Reply
Old Sep 10, 2021 | 01:13 PM
  #5  
Architect's Avatar
Architect
Seasoned HDF Member
15 Year Member
Joined: Apr 2010
Posts: 9,524
Likes: 7,861
From: Long Island, New York
Default

Your front auxiliary light/turn signal mount is really way out there, I wonder if that is stock for your year.

Here is mine, tucked much further back making it look better without the windshield. maybe with the fairing it needs to stick out further, VS the windshield.
 
Reply
Old Sep 10, 2021 | 01:59 PM
  #6  
Redrodyankneck's Avatar
Redrodyankneck
Thread Starter
|
Stellar HDF Member
10 Year Member
Photogenic
Liked
Top Answer: 1
Joined: Mar 2016
Posts: 2,285
Likes: 965
From: Eastern NC
Default

Originally Posted by Architect
Your front auxiliary light/turn signal mount is really way out there, I wonder if that is stock for your year.

Here is mine, tucked much further back making it look better without the windshield. maybe with the fairing it needs to stick out further, VS the windshield.
I just consulted the parts catalog for FL models 1941-1984 and the bracket on my bike is correct. The spots are tipped forward to clear the fairing, yes.
 
Reply
Old Sep 10, 2021 | 02:24 PM
  #7  
Redrodyankneck's Avatar
Redrodyankneck
Thread Starter
|
Stellar HDF Member
10 Year Member
Photogenic
Liked
Top Answer: 1
Joined: Mar 2016
Posts: 2,285
Likes: 965
From: Eastern NC
Default

I removed the battery to get at the spot on the rear fender that had been damaged from battery acid. Here is what I found.

Notice the home made lug for the + battery connection.........the stupids were hard at work here but there's more

Now that would ruin my day prob far away from home. That is the hot side of the start relay right off the circuit breaker. Funny that the bike started flawlessly the dozen or so time I started it up.
there is more...

Down stream from the start solenoid here is the same hot wire that apparently got good and hot, the contour of the burn mark fit perfectly against the rear exhaust pipe. There is a bracket that keeps the oil lines and this wire harness from hitting the exhaust pipe, who ever was in there did not see or understand the importance this bracket.

Here is a close up of the homemade battery cable lug made from thin copper flashing, you can see it was just folded around the wire. The start circuit can be 75-80 amps, more if things are not clean. Maybe this lug is actually a fuseable link to stop starter run on should it happen!!



The good thing is I'm getting real familiar with the bike and will fix these issues before they leave me stranded somewhere. I actually had no idea the start relay was under the battery tray.
 
Reply
Old Sep 10, 2021 | 05:39 PM
  #8  
john lee's Avatar
john lee
Stellar HDF Member
5 Year Member
Photogenic
Photoriffic
Shutterbug
Joined: May 2018
Posts: 2,165
Likes: 435
From: australia
Default

Originally Posted by Redrodyankneck

I decided to go through the bike so I stripped it down to see if there were any hidden issues under the tons of stuff that came on the bike. I put a cheap solo seat on it and have a minor S&S rebuild kit coming. The ejector nozzle o ring was not there when I removed the float bowl on the bench, so good find there.
Discovered the clutch cable was routed incorrectly, the clip on the bar clamp cover wasn't there so I put one on. This keeps the cable from getting squashed against the tank when the bars are on the left stop. This lifted the clutch cable from behind the shifter linkage, it was wearing out the outer cover of the cable. Went to move the shifter and the linkage came out of the shifter. The C clip that keeps the linkage connected was missing and the clutch cable that was behind it was actually keeping the linkage attached. Another good find.
I pulled off the chain guard to get a good look at things. While peering in towards the trans sprocket I thought I saw an old dirty rag stuffed in there. Oh boy, 1st thought was this was to disguise a sprocket shaft seal leak. This is what I pulled out of there.........

Yes those are giant chucks of granite. They were landed between the chain and the trans case and pulled out with ease. I imagine they would have eventually ruined my day.
Cleaned the underside and found that the primary is not isolated. There was an occasional drip of oil hanging down off the chain lube hose, figured just run off from somewhere.
It kept reappearing, turned out the 3/16 hose was seamed and the seam had opened up. The business end of the hose at the chain was buried in 1" of oil,sand, and crude as it sits directly in front of the rear tire. I just shut off the feed at the pump.
Pulled the battery cover off to check things out and found a sealed battery dated 2/21, nice..... didn't expect that. I cleaned up the connections and grounds, they weren't bad.
Found the rear fender had experienced an acid bath at some point so may have to pull the fender to mitigate, acid appears to have been neutralized long ago as baking soda had no affect.

With the solo seat I can flat foot the bike now. I plan to used it for a short while as I road test the bike.

I know some of you guys are disappointed that I took the bike apart but fear not ............It will be going back together to it's original glory without the bear trap. I have a frame mounted flex seat on the way complete with grab bar, back rest and bracket for attaching it to the rack, thank you Architect.
IMHO The bike has lost it's personality without the bags, guards, fairing and light bars.
apart from the seat and pipes i like it. red suits it
 
Reply
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-1

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-2

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-3

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

 Verdad Gallardo
story-4

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

 Verdad Gallardo
story-5

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-6

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
story-7

10 Motorcycles You Should Never Buy

 Joe Kucinski
story-8

10 Things Harley-Davidson Needs to Fix in 2026

 Verdad Gallardo
story-9

Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider

 Verdad Gallardo
Old Sep 10, 2021 | 07:29 PM
  #9  
old mago's Avatar
old mago
Stellar HDF Member
5 Year Member
Liked
Loved
Community Favorite
Joined: Mar 2017
Posts: 2,589
Likes: 2,162
From: australia
Default

Yeah ,same hot wire on my '82 FLH was chaffing up against the down tube and the oil tank, and that was from the factory !
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Dyna_Bagger85
Dyna Glide Models
7
Jun 6, 2015 06:20 AM
Smokey Burnouts
Primary/Transmission/Driveline/Clutch
9
Sep 12, 2012 10:02 AM
jerryw618
Sportster Models
1
Jun 16, 2011 07:32 AM
lowlife801
Shovelhead
10
May 3, 2010 05:49 PM
twowheelsforever
Sportster Models
4
Jul 8, 2006 03:44 PM




All times are GMT -5. The time now is 06:55 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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
story-9
Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider

Slideshow: Graeme Billington's left-hand-drive Shovelhead is as much about problem-solving as it is about classic Harley form.

By Verdad Gallardo | 2025-12-30 11:27:08


VIEW MORE