I just rejeted my YFZ today, and when im doin about 45mph on the street in 5th gear and plow down on the throttle, it picks up then lags a few seconds unless I pump the throttle on and off, any ideas, it runs great none the less, I think it may be part of the TORS system on it...

 

That's a jetting problem. Hard to say whether it's lean or rich. Hopefully a YFZ tuner will help you out more. I just wanted to let you know it's not TORS.

 

TY for the info, Im thinking that its my pilot jet size, I havent upped it yet, i was looking at some different articles and it sounds like i need to pull my pilot and up it to a 42 or 45...

 

What's your filter set up? Stock with lid? No Lid? K&N w/o lid? Give us some heads up on this so we can get you going in the right direction.

Might throw in your elevation to help some more.

Buck

 

yeah sounds like you arent getting enough air in it when you let off the gas and then give it some again it coul be your needle or pilot i'm guess take that lid off if you dont yet... though

 

im runnin a upgraded airbox mod, but with lid inplace, I took it for a long ride today and I am gonna have to move the needle down one place to lean it out. I'll be going up to Coral Pink Sand Dunes next weekend so I'll have to lean it out for that anyway. Thanks for the help