G oog le BadWeB | Login/out | Topics | Search | Custodians | Register | Edit Profile


Buell Forum » THUMPer Forum » Buell Blast Thumper Knowledge Vault » Ignition, Battery, Charging System - Electronic Trouble shooting » 05' Ignition Fuse burning out « Previous Next »

Author Message
Top of pagePrevious messageNext messageBottom of page Link to this message

Blaston518
Posted on Monday, August 13, 2012 - 12:15 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Alright guys I have an 05 Blast with damn near close to 12,000 miles been a solid reliable running machine till this point...On way home from work Monday went to pass a car and she sputtered then died. No turning over with starter button. Noticed 7.5A ignition fuse blown. Pop new one in....key it up.....bang! pops right away! I have the service manual arriving tomorrow. Any encounters from fellow thumper's to aid in the diagnosis? I'd really hate to cut into the loom of this bike!!
Top of pagePrevious messageNext messageBottom of page Link to this message

Ezblast
Posted on Monday, August 13, 2012 - 03:50 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

see if bottom of circuit housing is dirty, clean till the color of alum or copper re-appears on the bottom.
EZ
Top of pagePrevious messageNext messageBottom of page Link to this message

Blaston518
Posted on Monday, August 13, 2012 - 06:53 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Bottom of fuse block is clean as a whistle. I pulled the fuse block out and the main battery cable looking for a rubbed wire contacting the frame or other metal support! Can't find anything out of the ordinary/obvious! The bike will turn over and even pop to run(gas tank removed) but pops the fuse after less then 5 seconds. 7.5 Amp IGNITION fuse pops as soon as you KOEO. A 10 Amp will let the bike turn over and run after you key it up but pops the fuse shortly after. It DOESN'T pop when you hit the starter switch. Damn this sucks!
Top of pagePrevious messageNext messageBottom of page Link to this message

Ezblast
Posted on Tuesday, August 14, 2012 - 02:04 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

How is front ground? Check your ground and negatives, inc battery. Disable kickstand and clutch safety.
EZ
Top of pagePrevious messageNext messageBottom of page Link to this message

Blaston518
Posted on Tuesday, August 14, 2012 - 03:49 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Grounds are good to go. Battery/under seat and front grounds are tight and clean. The ignition fuse only feeds so many circuits. Gray wire to the starter button and red to the system relay which engergizes the starter relay awaiting you to push the button. Im wondering now if something has shorted in the secondary ignition system as the bike didn't just quit but came to a sputtering crawl then finally quit.
Top of pagePrevious messageNext messageBottom of page Link to this message

Blaston518
Posted on Tuesday, August 14, 2012 - 04:53 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Front ground left side of head is clean and tight as well as the negative battery cable and harness ground underneathe seat. I'm going to dig into the spark side of the ignition as the bike didn't just aburptly die on the road but rather came to a sputtering crawl then die.
Top of pagePrevious messageNext messageBottom of page Link to this message

Blaston518
Posted on Friday, August 17, 2012 - 05:31 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

UPDATE: Bike would run with a 15A fuse in place but was popping and bucking and no flash out of the LED light in the ignition module. Would place on sidestand and take my weight off the bike and it would stall but wouldn't pop a fuse. Picked up a OEM module from New Brunswick Harley/Buell and found the pink wire rubbed through on the old module harness where it passes behind the airbox. Was shorting to the rear engine mount. Installed new module, static timed ignition and she is a runner again!! One of those gremlins you can't diagnose with service manual....just a little poking around
Top of pagePrevious messageNext messageBottom of page Link to this message

Ezblast
Posted on Sunday, August 19, 2012 - 07:03 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Yeah - on the older models a wire going bad is always a possibility.
EZ
« Previous Next »

Add Your Message Here
Post:
Bold text Italics Underline Create a hyperlink Insert a clipart image

Username: Posting Information:
This is a public posting area. Enter your username and password if you have an account. Otherwise, enter your full name as your username and leave the password blank. Your e-mail address is optional.
Password:
E-mail:
Options: Post as "Anonymous" (Valid reason required. Abusers will be exposed. If unsure, ask.)
Enable HTML code in message
Automatically activate URLs in message
Action:

Topics | Last Day | Tree View | Search | User List | Help/Instructions | Rules | Program Credits Administration