Yamaha YZ125/250 / Fantic 2T RFX Throttle Tube

Sport Series Throttle Tubes

RFX Sport Series throttle tubes are an exact replacement part at a fraction of the cost of genuine parts. They have been manufactured with a Teflon-coated nylon fabric to ensure a smooth feel and fit.

• Replacement throttle tubes for all popular off-road bikes.
• Uses the same cam profile as the OEM part for correct throttle control.
• Teflon-coated nylon fabric provides smooth action.
• Does not damage bars like aluminium tubes.
• Open-end design for use with aluminium handguards if required.

Fitting Instructions

• Slide rubber boot down and unbolt throttle housing, remove old throttle tube taking care not to damage throttle cables.
• If required carefully remove grip from old throttle tube.
• Inspect cables and housing for damage or excessive wear, clean and lubricate or replace if required.
• Clean handlebar and check for damage where the old throttle tube has been rotating on the bar, if there are any burrs, replace the handlebar.
• Slide new throttle tube onto handlebar and lubricate using a penetrating lubricant, preferably Maxima MPPL (do not use grease as this will attract dirt and cause the throttle to stick after a short while).
• Reassemble throttle cables and housing using a small amount of penetrating lubricant.
• Tighten throttle housing to the correct position on the handlebar.
• Adjust the cable to your preferred length.
• Turn handlebar to its full lock to check for correct throttle operation and correct cable routing; cable may need to be re-adjusted.
• Slide rubber boot back over housing.
• Cover the hole on the end of the grip with electrical tape (to prevent glue getting into the throttle tube) and apply a small amount of RFX grip glue to the outside edge of the throttle tube on the outside diameter.
• Apply a small amount of RFX grip glue to the inside of the new grip and slide over the tube.
• Rotate grip to the correct position and leave to dry.
• Apply RFX grip wire if required.
• After the glue has dried, recheck the throttle for correct operation.