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Xb12r won't start

Buellxb Forum

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Kkyyllee10

Member
Joined
May 14, 2023
Messages
6
I have a 2007 xb12r that has sat for the better part of 3 years. Bike cranks over fine and will fire when starting fluid is sprayed down intake. 1st thing I checked was the fuel line. Disconnected the line running into the rail. Fuel comes pumping out at what seems like a very high flow when key is turned. Then took out the injectors cleaned them then bench tested them, they sprayed fine. Put it back together same thing only fires with starting fluid. What should I check next thanks for the help in advance.
 
Or fouled plugs. They will run on ether, and not fuel. Buells foul plugs very very easily.

To Barretts valid point, you can test the ECM/Fuel pump/injectors/ and ALL related wiring, without removing anything using ECMDroid and a Buelltooth device. from here:
https://www.rev-mo.com

You can also tee in a fuel pressure gauge at the line using this $13 thing:
https://www.amazon.com/Dorman-800-1...t=&hvlocphy=9031012&hvtargid=pla-570582703664
Screen Shot 2023-05-15 at 7.45.46 PM.png
or spend $45:
https://www.freedomracing.com/fuel-...XW4X8brO9cxxmwv_ivzGhK8ge0xic-bwaAnu9EALw_wcB

Screen Shot 2023-05-15 at 7.46.35 PM.png
 
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I bought the EMC Bluethooth device. Should be here today so hopefully I can see what's wrong this weekend and get it going soon
 
Ok I got the buellthooth. I clicked on fuel pump makes nose like should but doesn't tell me if it's good or bad. Did both front and rear injectors both click while going through the test aging doesn't say if it passed or failed. Is it just the fact I can hear it. I have new plugs coming In tomorrow but incase that's not the problem what's next? Thanks in advance
 
Ok I got the buellthooth. I clicked on fuel pump makes nose like should but doesn't tell me if it's good or bad. Did both front and rear injectors both click while going through the test aging doesn't say if it passed or failed. Is it just the fact I can hear it. I have new plugs coming In tomorrow but incase that's not the problem what's next? Thanks in advance

Put a fuel pressure gauge on the line to see if the pump is making adequate fuel pressure. It doesnt make a difference what noise it makes if its not delivering enough fuel or fuel pressure to make it run.
 
You should test the injectors one or two times and be sure to test the coils right after. You'll know if they're working.:love_heart:

Best to take the muffler and the air box off before performing a test like that, just to make sure fire is going the right direction.
 
You should test the injectors one or two times and be sure to test the coils right after. You'll know if they're working.:love_heart:

If you have an extra coil, you should substitute it in place of what you have in there currently to make sure that isnt your problem.

Make sure to put a large "X" on one of them so you dont get them mixed up.

This will never get old. LOLOLOLOLOLOLOLOL!:eagerness::love_heart::black_eyed:
 
Best to take the muffler and the air box off before performing a test like that, just to make sure fire is going the right direction.

How dare you, sir!

Well, I haven't seen nice yet, and it really goes both ways! I asked about two styles of mounts that have come to fruition in light of the OE parts costing a left nut, but that does not make me a noob by any means. 4 posts on a new-to-me forum doesn't equate to my life experience so get over yourself. Search terms in 2023... with all of the SEO these days and now AI flooding the gates, who has the time to sift through ENDLESS fodder for an answer. I dove as deep as I had the time for and figured what's the harm in asking some folks that have had the bikes longer than myself.

everyone deserves the same respect you think you deserve by having a high post count and a subscription to the site, and we can all have fun in the sandbox. I couldn't care less about post counts it only tells the world you're likely someone who works on a computer all day and is bored AF. Has no other perks than a dopamine dump. Knows more than me? What a stupid thing to say to a complete stranger.... lol based on what? Time spent on forum? Post count? one brand of motorcycle's engine mounts? ya got me there!!

Neither of you showed respect, both of you knew part of the answer to my question and both neglected to say without my prodding. Nowhere in my first post were there any hints of being an asshole, rude, arrogant, etc. and I get that crap? lol Tell me how you'd respond if that's how you were treated asking for help from a group of reputable strangers. Man, I hate forums. Nothing has changed about them in 20 years, always trolls, always bickering the cycle continues and I fell right into a keyboard battle...
 
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