[Sick TRX]

I have been having problems with my TRX - she has been flooding on start and running rough under 3000 rpm, on the advice of another forum I have completely rebuilt the carbs with a repair kit. I have also renewed the plugs and air filter but the b***ch is still flooding - any ideas?????

Sounds like needle valve or float height.

Do you have one plug running black? or at least darker than the other, chances are that is the problem cylinder/carb.

[XT125 tuning!!!!!!!!]

My Son has one of these bikes and he struggles to do more than 63mph, (when the speedo is working that is ) there has to be a way.

My thoughts:

Has anyone tried blocking off the small take off pipe from the exhaust that goes to the emmissions stuff?

The outlet on the std exhaust seems very small diameter, does a replacement exhaust help much?

Can anyone confirm this restrictor in the front of the exhaust?