On my new 250 scooter the throttle is sticky
can these be adjusted or just order a new one?
On bikes its either rusty, frayed throttle cables binding in the liner, or a bent bar sticking the tube. I would start with new cables.
New as in brand new or newly acquired?
First thing to do is check the throttle tube isn't gummed up. Clean with degreaser and clean the bar too. Fit the tube with no lube whatsoever.
is there a spring on the other end , also check the twist grip rubber isnt catching on the switch gear housing ,, seen that before. surprised its not fbw these days.
Clean and lube cable to start
Some modern cables are designed to work without lube. Plastic cable liner and plastic coated inner. I use penetrating oil to dissolve any crud then clean it all off to re-assemble.
take the end off the carb , Im assuming it has a carb ,, then see if the cable is sticky or whats going on , but being a scooter its probably easier said than done.
It has twin cables one for throttle open the other for closed return
for £20 I will order a new set
Twin cables are usually one for throttle, and one for oil pump,
that was the old days ,, lol
Throttle open and throttle closed so you dont end up looking at a bend too fast , safety thing.
Lots already said, cable routing can be a problem as some people don't understand they need a smooth run to work properly. Depends if someone has been messing about with it before, the usual scene is some car park expert has tried a repair and you have to go in blind and find out what is fubar or overlooked. The grip touching the bar end or being damaged and pushed in is a simple one!
are you calling my Yamaha BWS 50cc old! it is the newest two wheeler I own, by a long way!
just pre loved ,,, these modern sports scooters just lack character ,,, and puddles.
but the big bug eyes are great ,, like a Ruckus / zoomer
I always liked the Motra ,, but they are thin on the ground these days.
With twin cables they can bind if they are adjusted with too little free play (or none at all).
new to me mate it’s a 1996 yp 250 4stroke
she runs nice just the cable doesn’t self return and the mot is Thursday so will try tomorrow after work as it’s in the unit where I work.
being covered in plastic it’s not the easiest thing to take apart quickly
Carb - check it snaps shut without the cable attached - oil pivots, check return spring.
Check for frayed cable, wrong routing, handle bar grip hard against handlebar, handlebar rusty and stopping the throttle moving easily, oil cables or clean crud out with PTFE spray. As said neither cable should be tight.
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