Bike won’t start
Thread Starter
|
Stage IV
Joined: Mar 2019
Posts: 4
Likes: 0
From: Illinois
Bike won’t start
The end of last riding season my bike overcharged it self so I just now am getting around to fix it I’ve replaced the rectifier/voltage regulator I replace the stator i’ve also replaced the battery when I connect the battery to the bike the bike won’t even crank over I don’t even get the sound of the fuel pump coming on looking for some help to figure out what’s going on any help is appreciated
Club Member
Joined: Apr 2013
Posts: 7,681
Likes: 8,413
From: Utah
Welcome to the Forum from UT.
Always state what year and model bike you have. Do you have security, have you checked for codes.
Do the lights come on or anything that indicates you ignition is on?
some batteries have the posts reversed.
Always state what year and model bike you have. Do you have security, have you checked for codes.
Do the lights come on or anything that indicates you ignition is on?
some batteries have the posts reversed.
Thread Starter
|
Stage IV
Joined: Mar 2019
Posts: 4
Likes: 0
From: Illinois
. 2002 H D ultra classic no security the rear tail lights come on like the brakes or on plus the all the garage lights come
Grand HDF Member
Joined: Jan 2012
Posts: 4,459
Likes: 2,893
From: Oklahoma
New fuses do NOT guarantee that some haven't blown as soon as you turned on the power if some wiring got messed up in all that you did. Does the start relay click when push the start button? Does the system relay click when you turn on the main switch? I suspect that when you find why the fuel pump isn't priming, everything else will start working also. Asside from the replacements you described, have you done anything with the handle bars and switch boxes on each side? Pinched wires seem to be a common by-product of left or right switch box work.
Trending Topics
Stellar HDF Member
Joined: Sep 2017
Posts: 2,144
Likes: 577
From: memphis
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
Outstanding HDF Member
Joined: Dec 2012
Posts: 2,557
Likes: 235
From: Texas
FOB battery? I had a similar issue with my '03 Ultra with a dying battery and bad FOB battery.
I had ridden downtown Houston for a visit and when I got ready to leave, the bike would not crank. Everything seemed normal at first until I noticed that the security key warning light came back on after the initial self-test, and both turn signals flashed briefly and the pump would not run and it would not crank. I called a local dealer and was told that the security system might have shut down the system because of the battery problem and I needed to charge up the battery and replace the FOB battery then take the lights fuse out (to keep from draining the battery), turn the ignition switch on, and leave it alone for 10-15 minutes to allow the FOB and security module to remarry. This worked and I was able to get back home. I have since found this instruction in my service manual.
I had made several rides without the FOB with me without any issues so I did not think the security system was active on the bike. The battery had been disconnected for months and the bike cranked right up so this instruction was confusing but it was the problem.
I had ridden downtown Houston for a visit and when I got ready to leave, the bike would not crank. Everything seemed normal at first until I noticed that the security key warning light came back on after the initial self-test, and both turn signals flashed briefly and the pump would not run and it would not crank. I called a local dealer and was told that the security system might have shut down the system because of the battery problem and I needed to charge up the battery and replace the FOB battery then take the lights fuse out (to keep from draining the battery), turn the ignition switch on, and leave it alone for 10-15 minutes to allow the FOB and security module to remarry. This worked and I was able to get back home. I have since found this instruction in my service manual.
I had made several rides without the FOB with me without any issues so I did not think the security system was active on the bike. The battery had been disconnected for months and the bike cranked right up so this instruction was confusing but it was the problem.
Club Member
Joined: Apr 2013
Posts: 7,681
Likes: 8,413
From: Utah
I think OP said no security. I agree with the folks above check battery voltage, should be 12.8 and recheck fuses.
I don't have drawings for 2002 but I have 2004. The ignition fuse supplies power to the Off/Run switch on a Gray wire. When the switch is on the B/W wire puts power on the start button and puts power on the system relay coil which is grounded through the ECM. The relay is energised when the off/run switch is in run the position and the contacts close. The ECM fuse provides 12V to the contacts so when the relay is energised and contacts closed the ECM fuse powers the fuel pump fuse, that's why when you turn ignition on then Off/Run to run you hear the pump run for 2 seconds.
So you need to check why the pumps not running. You could pull the system relay and check to see if socket U the B/W has 12V when in run with ignition on. If you pull the relay and check you should have 12V on 2 sockets the one from ECM and the B/W. That's the first thing I'd check, it will tell you if the switch is working.
Also sounds like a brake switch is stuck
I don't have drawings for 2002 but I have 2004. The ignition fuse supplies power to the Off/Run switch on a Gray wire. When the switch is on the B/W wire puts power on the start button and puts power on the system relay coil which is grounded through the ECM. The relay is energised when the off/run switch is in run the position and the contacts close. The ECM fuse provides 12V to the contacts so when the relay is energised and contacts closed the ECM fuse powers the fuel pump fuse, that's why when you turn ignition on then Off/Run to run you hear the pump run for 2 seconds.
So you need to check why the pumps not running. You could pull the system relay and check to see if socket U the B/W has 12V when in run with ignition on. If you pull the relay and check you should have 12V on 2 sockets the one from ECM and the B/W. That's the first thing I'd check, it will tell you if the switch is working.
Also sounds like a brake switch is stuck
Thread
Thread Starter
Forum
Replies
Last Post
SR90
Touring Models
10
May 19, 2015 04:19 PM
glover_85
Electrical/Lighting/Alarm
3
Jul 18, 2014 01:26 PM