[Wolverine]

Hi, I just changed my sparkplugs on 2010 850, one plug was tan in color the other a dry black. The bike has been running good. Any ideas for the different colors

 

[4xfun]

I'm no expert but I asked a similar question for my sporty 800 and the answer I got was the injector could be not spraying correctly. As the computer controls the efi it should be good by itself. Hope that is a little help.

 

[Wolverine]

Hi, Is it safe to use injector cleaner

 

[faawrenchbndr]

Yes,.......I run SeaFoam regularly

 

[fishhooker]

X2 on an injector cleaner. It sounds like one injector may have something on the pintle & may not be fully closing.