XR play fireworks..!!

[nanguito007]

I'm really new racing a Honda Xr,,,, just bought it 3 month ago and I ridden for 4 times,,, after that i start to some problems....

I can not get the correct calibration (torque, rpm. streght) carburator needle
- When a push the gas (aceleration) it play fireworks (sound)
Could somebody help me...???
Thanks
Frank

[Sharribee]

Frank take a look at your other post Airwolf has given you some advice there

Hey Frank,

As general basic guide;

If the backfire (boomboom) is when opening the throttle/accelerating, then look at calibration/electrical (ignition).

If the backfire is when closing throttle/slowing down, then look at exhaust system for leaks (loose joints / gasket ).