hi, I have a problem with service error – P0850 – GV125S / GV125-S EFi Bobber

[Robert]

GV 125s loses power at revs (2000), in 1st and 2nd gear. Above 5000 revs it is ok. Error P0850 – GP or Clutch lever Switch Circuit Malfunction was displayed.
I corrected the contacts, the error is still there.
Can anyone help?

[♠️ MARCEL]

Gear Position Sensor  (Neutral Sensor) = Faulty or broken wires inside
Or
Clutch Switch handlebar has problem (actual switch or wire broken inside)

Also if there is power loss at 1000-2000 rpm  = Does it idle okay in standstill  or when you idle , does the RPM needle jump up & down ?

// Meditation doesn't mean you have to sit still....

[Robert]

♠️ MARCEL wrote:

Gear Position Sensor (Neutral Sensor) = Faulty or broken wires inside Or Clutch Switch handlebar has problem (actual switch or wire broken inside) Also if there is power loss at 1000-2000 rpm = Does it idle okay in standstill or when you idle , does the RPM needle jump up & down ?

Quote

At idle speed the RPMs jump to 1500-2000.

[♠️ MARCEL]

At idle Does it stay 1500 rpm ?  ==== > or  does it do this   1500, 1700, 1400, 2000, 1500 ?

Is it steady or flactuating ?

// Meditation doesn't mean you have to sit still....

[Robert]

♠️ MARCEL wrote:

At idle Does it stay 1500 rpm ? ==== > or does it do this 1500, 1700, 1400, 2000, 1500 ? Is it steady or flactuating ?

Quote It jumps gently, 1500, 1700, 200, 1700, 1500 … something like that. But on a cold engine the first 3 starts from 1 work normally, then it starts to jerk when starting, at low revs. Gas to the max and the engine barely moves, suddenly it accelerates rapidly.

♠️ MARCEL wrote:

Gear Position Sensor (Neutral Sensor) = Faulty or broken wires inside Or Clutch Switch handlebar has problem (actual switch or wire broken inside) Also if there is power loss at 1000-2000 rpm = Does it idle okay in standstill or when you idle , does the RPM needle jump up & down ?

Quote

At idle speed the RPMs jump to 1500-2000.

[Robert]

♠️ MARCEL wrote:

At idle Does it stay 1500 rpm ? ==== > or does it do this 1500, 1700, 1400, 2000, 1500 ? Is it steady or flactuating ?

Quote

It jumps gently, 1500, 1700, 200, 1700, 1500 … something like that. But on a cold engine the first 3 starts from 1 work normally, then it starts to jerk when starting, at low revs. Gas to the max and the engine barely moves, suddenly it accelerates rapidly.

[♠️ MARCEL]

Check this link and follow it , then come back to this thread to see if it even helped  or not.

GV125s idle speed when hot

 

 

// Meditation doesn't mean you have to sit still....

[Robert]

Today the error disappeared, the engine works normally. I didn’t do anything. We’ll see what the future brings.

[Author]

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