Access built in Tachometer on Yamaha WR250X

US spec WR250X requires you to ground a wire in order to let you access the CO settings and built in tach. This video shows you how to do that so you can adjust your CO settings or Idle RPM.

[@niklehman2629]

Just worked on my 2016 wr250r thanks man

[@yzrippin]

Great to know bro I have a 2017 WR250R full air Box flapper delete k&n filter ekj tuner q4 fmf pipe been wondering where my rpms are at 65mph.

[@taraskompaniyets1039]

Thank you for this info - now I know from where to get RPMs when I replace ugly stock info panel with KOSO DB-03R MULTIFUNCTION GAUGE.

[@delgadokd]

No worries! Glad I could help.

[@phudoan3250]

My plug only has 3 wires, How can I ground it

[@geoffboyd]

Can you explain how adjusting the CO works? If I want my bike to idle better what do I look for and then fine tune? I have a power commander and auto tune as well...

[@nickthenack9]

raise your idle rpm to 1650.
dont mess with the co unless you have an oxygen sensor.
make sure the 0% throttle column is empty in the pc5

[@Sativa345]

That black wire isn't there with my wr250x

[@paullittle2361]

does this really work?

[@delgadokd]

Paul Little. Yes it does!

[@MarvFitBikesKicks]

So that shows you the rpms? Why wouldn’t they just sell the bike like that instead make it so complicated to find that mode?

[@nickthenack9]

its for diagnostics purposes only. you shouldnt ride the bike with the rpm displayed