Long story short, i have some gremlins in my o8 wr carb i just can't work out so I'm looking to purchase a used carb off ebay and start from there..I swapped carbs with my friend who has another 08 Wr450 and it ran perfect so I know it's my carb. . I know the WRs have the air cut valve and the yz does not so this would potentially change the jetting. But since the CDI is different on both bikes and the acv is different, would the TPS be set different? I don't want to touch the tps to be on the safe side. Reason i ask is this opens my options for carbs.