2012 WR450 no spark


5 replies to this topic
  • Frostbite

Posted February 07, 2016 - 11:17 AM

#1

Hi Folks. I installed a 4 gallon tank on my bike, pretty simple job.

 

The bike has very low miles and worked perfectly before the tank swap.

 

No spark now, the bike hasn't run since the swap. Any ideas?

 

Thanks

 

Frosty



  • Frostbite

Posted February 07, 2016 - 05:31 PM

#2

Does anyone know if power to the ignition coil is cut of the fuel pump is unplugged, or exactly how the lean angle sensor affects the power to the coil?



  • patrick2wd

Posted February 08, 2016 - 04:24 AM

#3

does the engine primes (pump)

any connectors (ground) loose..on the ignition coil?



Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • Frostbite

Posted February 08, 2016 - 07:28 PM

#4

does the engine primes (pump)

any connectors (ground) loose..on the ignition coil?

 

Yes, the fuel pump spins up normally. All coil connections that I can see are perfect, and I removed the coil and cleaned the mounting tabs to make sure to get a  good ground. I removed the plug cap last night and held the wire near the frame and got a very weak spark



  • patrick2wd

Posted February 09, 2016 - 12:29 AM

#5

weak spark should not be an issue,

on my last yammie XT it had a spark that was barely visible..

 

have you been working on other parts cdi (ecu)?

otherwise start measuring..

if all the values of the coil/ generator are ok..



  • Frostbite

Posted February 09, 2016 - 03:37 AM

#6

weak spark should not be an issue,

on my last yammie XT it had a spark that was barely visible..

 

have you been working on other parts cdi (ecu)?

otherwise start measuring..

if all the values of the coil/ generator are ok..

 

The bike is inside, and in complete darkness  there is no spark from the plug and a barely visible spark with the wire near the frame. I was hoping for something simple -  that I bumped a sensor that caused this.  Of course it could just be a coincidence that this happened at the same time I changed the tank. I didn't work on anything else, just the tank. I'll get the meter out. 






 
x

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.