R1 abnormal acceleration from first through second gear

[shandb9]

What os an ecu unleashed mod?

[downshift83]

did you figure out the problem?

[maddoxjsph]

@downshift83

the early 07 r1's have an ecu glitch causing this. your yamaha dealer will replace it for free if you complain about it. just be sure to have the ecu replaced with a good one before you do any ecu mods like ECUnleashed.

[downshift83]

@maddoxjsph I dont have a yamaha for a street bike- but i was just wondering- thanks for the info

[mattc1683]

your ecu is toast I think.