Lean mixture

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My 04 xb12r has high idle speed, detonation, and glassy spots on the spark plugs. What should be done to eliminate this.

 

[Cooter]

What have you done to diagnose it?

 

[d_adams]

Change your intake seals (lean condition) and new plugs. Verify correct calibration for the ecm/exhaust combination.

 

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My 04 xb12r has high idle speed, detonation, and glassy spots on the spark plugs. What should be done to eliminate this.

I bought the bike with a modified stock mufler. Supposed to be less back pressure now can I use my laptop to check the ecm/exhaust calibration and where do I learn how it's done?

 

[Chicknstripn]

You need ECMspy and a communication cable to use your laptop.
OR, ecmdroid, an android device, and a Bluetooth dongle.

Do a little google searching and you’ll find infinite info on both.

I’m no tech expert so this is where my knowledge hits the rev limiter on this subject.