Engine revving and wheel spin on idle.

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Lemonbox36
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Engine revving and wheel spin on idle.

Post by Lemonbox36 »

My pcx 125 is on, the engine is revving up to about 10mph on the speedometer and making a lot of noise. Problem is, I am not twisting or touching the accelerator at all. It only started this morning on my commute home from work, and didn't on the journey in 4 hours before. Any ideas?
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Urbanfreestyle
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Re: Engine revving and wheel spin on idle.

Post by Urbanfreestyle »

Does the throttle have any play in it? generally speaking you should be able to twist the grip a little before you take up the tension on the throttle cable. If there is sufficient play i would recommend checking any vaccum pipes.

I'm not too sure though i'm just spitballing.
Honda PCX 125 ESP (Black)
Power:11.7 hp @8500 rpm, Torque:12Nm @5000rpm
Mods: LED sidelights, Yoshimura Exhaust

DEAD: 2013 Piaggio Typhoon 4 stroke 125cc (Black)
Power:9.65 HP @8500 rpm, Torque:8.2Nm @7500 rpm
Mods: Malossi Red foam filter, Hex LED Sidelights, Xenon headlights, USB charging port
Lemonbox36
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Re: Engine revving and wheel spin on idle.

Post by Lemonbox36 »

No play on the throttle. Feels like its stuck on low power.
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Urbanfreestyle
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Re: Engine revving and wheel spin on idle.

Post by Urbanfreestyle »

i'd suggest loosening off that cable as a starting point and see how it performs from there. :) If it's only happened recently it could be a sticking choke but not too sure how they work on these bikes. I have yet to hear of cables shrinking! lol
Honda PCX 125 ESP (Black)
Power:11.7 hp @8500 rpm, Torque:12Nm @5000rpm
Mods: LED sidelights, Yoshimura Exhaust

DEAD: 2013 Piaggio Typhoon 4 stroke 125cc (Black)
Power:9.65 HP @8500 rpm, Torque:8.2Nm @7500 rpm
Mods: Malossi Red foam filter, Hex LED Sidelights, Xenon headlights, USB charging port
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chainsaw
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Re: Engine revving and wheel spin on idle.

Post by chainsaw »

unhook the battery and let the ecu reset itself, then start checking for sticking cables.
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Re: Engine revving and wheel spin on idle.

Post by WORFAB »

no choke cause no carb ;) x2 for adjusting the throttle cable
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Urbanfreestyle
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Re: Engine revving and wheel spin on idle.

Post by Urbanfreestyle »

Any luck?
Honda PCX 125 ESP (Black)
Power:11.7 hp @8500 rpm, Torque:12Nm @5000rpm
Mods: LED sidelights, Yoshimura Exhaust

DEAD: 2013 Piaggio Typhoon 4 stroke 125cc (Black)
Power:9.65 HP @8500 rpm, Torque:8.2Nm @7500 rpm
Mods: Malossi Red foam filter, Hex LED Sidelights, Xenon headlights, USB charging port
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