|Posted on Tuesday, November 06, 2018 - 11:50 am: ||
New to me 08 with 29k. Bike ran fine for a few hundred miles then started to run terrible. Now it won’t even start. Checked all fuses and relays. Put in a new battery and it still will not start. Can hear the fuel pump prime. No CEL or engine codes. Starting to pull my hair out
|Posted on Tuesday, November 06, 2018 - 12:14 pm: ||
start with basics: fuel, spark, air.
Some quick-n-dirty checks:
fuel: pull the plugs. are they wet with fuel?
spark: with plug connected to wire, ground the electrode (just rest is against the head). Can you see spark when turning over the engine?
check both plugs.
Air: pull the air box and make sure there is no obstruction.
results of these checks will determine next steps.
|Posted on Tuesday, November 06, 2018 - 04:42 pm: ||
My 2008 started to run crappy like the timing was going out. after a long debug process, I determined that the ECU itself was bad.
I cut my way into the black box and reflowed the connector solder but it still didn't run right.
A new "Race" ECU from IDS fixed it and made it run better than it ever did before.
It's not cold-blooded at startup like it was either.
I bring this up since it's very damn easy to plug in a second ECU just to see if it fixes you. Is there someone near you with a 2008-2009 XB12?
|Posted on Thursday, November 08, 2018 - 08:05 pm: ||
Probably need some more info;
Does it crank but not start?
Is the ECM damaged or cracked?
Anything clogging the airbox?
|Posted on Wednesday, November 28, 2018 - 12:25 pm: ||
My Uly wouldn't start not too long ago so I brought it in to the shop. They found it was a bad headlight. I was shocked. I don't know if your case is the same since my bike didn't run poorly before it just wouldn't start again.