Honda FourTrax Recon TRX250TM 2019 Owner's Manual page 118

Throttle
Throttle Inspection
Refer to Safety Precautions on page 79.
1. Check that the throttle assembly is positioned properly and the
securing bolts are tight.
2. Check for smooth operation of the throttle lever from fully open
to fully closed in all steering positions. If there is a problem, see
your dealer.
3. Inspect the condition of the throttle cable from the throttle lever
down to the carburetor. If the cable is kinked or chafed, have it
replaced.
4. Check the throttle cable for tension or stress in all steering
positions.
5. Lubricate the cable with a commercially available cable lubricant
to prevent premature wear and corrosion.
108 Servicing Your Honda