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Discussion Starter #1
Found this capped plug around the battery area on my 09 yfz450r. I have had low rpm hesitation on the quad being bone stock since i bought it from original owner and have went through everything to not figure it out yet..working on trying to fix it with my pc5 (new) atm. Any input greatly appreciated!
 

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It looks like it could be the taillight plug, do you have a taillight on it?
 

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I have the same capped plug on my 14....I bet it is a test point....I don't think there is a jumper in there...I could be wrong...OUCH..LOL
 

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Cherry bomb plug. NOT.

I asked same thing and someone said a diagnostic plug.
 

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Discussion Starter #5
Not tail light that works fine, always been curious why its there..not sure if it would say in a manual if anyone has one? I would think so if it was a diagnostic plug.
 

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View attachment 87863


Sent from my iPhone using Tapatalk


Jesus even worse. Preview looks crystal clear, however soon as you post, garbage. Both attachment and pic upload feature. Sorry guys, I tried. Important thing is, mystery solved it’s a diagnostic connection port as most suspected. Straight out of the manual that you can’t see in the pics lol


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