So you want to know how to clean the throttle cable on a dirt bike? Regularly checking and lubing the throttle components will prevent the cable from fraying and snapping, ensure a smooth throttle action lowering the chances of arm pump, and help you avoid nasty, unnecessary accidents caused by a jammed throttle. There are plenty of horror stories of riders that have crashed because the throttle was stuck open.
When was the last time you checked yours? Take 20 minutes out of your day and clean that sticky throttle - it may just save you some coin and a trip to the hospital.
Peel back the rubber sleeve so you can remove the throttle housing and slide the throttle tube off.
Note: Most modern four strokes have two cables instead of one - a push and a pull cable.
Note: Some modern cables are Teflon coated which shouldn't be (and don't need to be) lubed. Using contact cleaner or lube spray can corrode the coating so make sure you know whether it's Teflon coated or not.
Tip: Don't use grease on the throttle tube as it will only give it a sluggish feel, plus the sand/dirt will stick to it. It is perfectly fine to use a fine spray lube like WD40 or CRC. Also, if the throttle tube is damaged you will need to replace it.
Tip: When tightening it to the bar, push the housing all the way on as far as it will go then back it off a couple of millimeters before tightening. This will eradicate any friction between the bar end and throttle tube end.
And there you have it.. a throttle smoother than James Bond ordering a martini. Just make sure the rubber sleeve is in good condition - otherwise replace it.
Question: How often should I clean and lube the throttle cable on my dirt bike?
Answer: In an ideal world I would clean the throttle tube and housing components every 5 - 10 hours and after every time I drop the throttle directly into mud or sand. I clean the cable every 10 - 20 hours, again depending on the riding conditions and how dirty it is inside the housing.
Other Possible Causes Of A Sticky Throttle