81 Low Rider front cylinder running hot

Reply Subscribe

Thread Tools

Search this Thread

Apr 6, 2018 | 10:30 AM

#11

Mike07roadking

Thread Starter

Cruiser

Joined: Feb 2018

Posts: 191

Likes: 9

From: Texas

when I said I melt the plug - I meant plastic view plug.

Apr 6, 2018 | 08:15 PM

#12

Mike07roadking

Thread Starter

Cruiser

Joined: Feb 2018

Posts: 191

Likes: 9

From: Texas

Well you all were correct, it appears to be compression related. Bought a cheap gauge today and ran a couple of tests.

both front and rear cold 80psi
front hot 70psi
rear hot 70psi

front with oil hot 100psi
rear hot with oil 70psi

looks like the rings are shot and its time for a valve job.

Book ok says I need 100psi.

Apr 7, 2018 | 06:43 AM

#13

johnjzjz

Seasoned HDF Member

Joined: Nov 2006

Posts: 12,878

Likes: 5,449

From: la la land jerzey

and the probable cause of the demise was the intake seals

Apr 7, 2018 | 09:57 AM

#14

Mike07roadking

Thread Starter

Cruiser

Joined: Feb 2018

Posts: 191

Likes: 9

From: Texas

Looking at a V-Twin 11-0863 top end kit - any body ever install it? Is there a more cost effective option to fix this thing?

Apr 7, 2018 | 08:06 PM

#15

johnjzjz

Seasoned HDF Member

Joined: Nov 2006

Posts: 12,878

Likes: 5,449

From: la la land jerzey

i would buy 2 of them never know when you about to go out on a Saturday night and it needs a replacement again

Apr 7, 2018 | 08:55 PM

#16

Mike07roadking

Thread Starter

Cruiser

Joined: Feb 2018

Posts: 191

Likes: 9

From: Texas

Okay.....

it it looks like it would do the trick. It's a $4k bike. I don't need a $4k motor in it.

Apr 8, 2018 | 08:34 PM

#17

Mike07roadking

Thread Starter

Cruiser

Joined: Feb 2018

Posts: 191

Likes: 9

From: Texas

I think I might have a bad gauge. I tried it on my lawn mower and it has low compression too. 130 & 140, It should be around 160PSI. The Mower runs perfect and the plugs a nice as well, so I am not sure what is going on with that gauge, See the video of me starting my bike and tell me that has classic low compression..... This just does not make sense to me. The bike may be a little low, but it ant that low. Its puffin out a little black smoke on a rich condition. Both pugs are rich.

Have you guys seen a bike start and run that good on 70-80PSI? Let me know what you think.....

Apr 8, 2018 | 08:35 PM

#18

Mike07roadking

Thread Starter

Cruiser

Joined: Feb 2018

Posts: 191

Likes: 9

From: Texas

HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

7 Surprising Harley-Davidson Products that Are Not Motorcycles

Verdad Gallardo

8 Best Harley-Davidson Motorcycles Ever

Pouria Savadkouei

10 Worst Harley-Davidson Motorcycles Ever

Pouria Savadkouei

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

Verdad Gallardo

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

Verdad Gallardo

Harley-Davidson Reveals Super Cool Cafe Racer Concept

Verdad Gallardo

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

Verdad Gallardo

10 Motorcycles You Should Never Buy

Joe Kucinski

10 Things Harley-Davidson Needs to Fix in 2026

Verdad Gallardo

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

Verdad Gallardo

Apr 28, 2018 | 10:21 AM

#19

Mike07roadking

Thread Starter

Cruiser

Joined: Feb 2018

Posts: 191

Likes: 9

From: Texas

Now I am running lean again? I went around and reefed on the band clamps holding the carb on and I was able to get another turn or so. Other than that the bike rides great.

Attached Thumbnails