speedometer/tach

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Jan 8, 2008 | 07:48 PM

oldairboater

Thread Starter

Ultimate HDF Member

Joined: Jan 2008

Posts: 7,476

Likes: 5

From: Republic of Texas

speedometer/tach

I went to install speedo/tach on 1998 wideglide. Bike perwired to just plug and play with just tach lead to install. Found tach wire and installed. Tach works but speedo doesn't. Checked wiring three times. Wires appear to be right. Went to install old speedo back to check it. No speedo reading. Have power--lights--correct odometer reading but no speedo and odometer doesn't change. I have continuity from speedo to speed sending unit. I have no voltage from speedo to sending unit. Old speedo doesn't work--new speedo/ tach unit doesn't work. Tach works but speedometer doesn't.Suggestions?

Jan 8, 2008 | 08:36 PM

goblish

Cruiser

Joined: Nov 2007

Posts: 114

Likes: 0

From: MN

RE: speedometer/tach

I would guess for some reason your sending unit is shot ,it happened to my 1998 softtail with no warning just quit (fun thing sitting in front of a harley dealer) so went in the store and bought a new one took there tools to my bike and switched it and worked great for as long as I owned the bike. Hope this might help you.

Jan 8, 2008 | 08:41 PM

Trey Hogger

Road Master

Joined: Nov 2007

Posts: 1,136

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From: Tri-Cities, Washington

RE: speedometer/tach

Sorry, nope. I installed the speedo/tach on an 04 DWG and 06 Heritage. Both plug n play, worked without a hitch - but I didn't need to install the tach lead. Weird that your tach works when that was your only hook-up, and the pre-wired half doesn't. Hope someone can help out. First post - welcome to the forum.

Jan 12, 2008 | 09:10 AM

sqdealgeorge

Road Warrior

Joined: Dec 2007

Posts: 1,854

Likes: 20

From: Eagle River WI

RE: speedometer/tach

unscrew the speedo sensor in trans clean off the inside tip reinstall this usually works

Jan 12, 2008 | 10:16 AM

Da Gumpmeister

Ultimate HDF Member

Joined: Dec 2007

Posts: 8,642

Likes: 6

From: Forest Lake, Mn

RE: speedometer/tach

Agree with sqdeal. Clean it first - KISS - if no success, then R & R sending unit. Good luck.

Jan 13, 2008 | 10:24 PM

oldairboater

Thread Starter

Ultimate HDF Member

Joined: Jan 2008

Posts: 7,476

Likes: 5

From: Republic of Texas

RE: speedometer/tach

Thanks for the suggestions. I replaced speed sensor. Now speedometer works.Sensor must have went bad while I was in the middle of change out.

Jan 13, 2008 | 10:33 PM

Lone Watie

Outstanding HDF Member

Joined: Dec 2007

Posts: 2,215

Likes: 2

From: Northern Arizona

RE: speedometer/tach

Should have used a GPS for the speed, and you could have kept the mileage down on your bike, definitely would have helped with the resale value. I took a vow to give up smiley faces.