LML 125 4S automatic Engine stops working while seated

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LML 125 4S automatic Engine stops working while seated

Postby certl » Mon Aug 08, 2016 9:06 pm

Hi all,
i have some trouble with my LML 125, while driving the scooter works perfectly.
But if i stay at the traffic light, the engine stops slowly, i think about 10 seconds then the engine stops to work.
Today i tried the rotary switch under the seat, i drove a few meters stopped, meanwhile i thougth the engine would stop again,
i put the scooter on the stand and than the engine works perfectly again without using the rotary switch.
I tried again sitting on the scooter the engine slowly stops to work, if i stand up the engine come back and works fine.
I told this phenomenon my friend and he laughed really loud and said that I am probably too heavy for the scooter. :lol:

But it is reproducible every time I sit on the saddle the engine dies, if I keep standing and hold the scooter only, the engine run pretty well.
Its a LML 125 4 stroke Automatic, and about 5000 km

I am not that deep technican, any ideas what the hell this could be?
Best regards from Germany, i hope my english is not too bad ;)

Chris
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Re: LML 125 4S automatic Engine stops working while seated

Postby Norm » Tue Aug 09, 2016 6:28 am

I had a similar problem, it was because the multi-connector was not fully connected to the ECU. When I sat on the scooter, it pulled out a little and disconnected. Once I pushed it fully in so it clicked (latched), no more problems.

You should also check that all the tubes are connected to the carburettor, sometimes the breather pipe comes loose.
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Re: LML 125 4S automatic Engine stops working while seated

Postby B31 » Thu Aug 11, 2016 6:10 am

Hello
As already written , check the hoses connected to the carburettor.
It happened to my Lml auto, see photos on the "stalling engine repaired " topic I wrote on the second page of this Lml auto forum.
Emmanuel (from France )
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Re: LML 125 4S automatic Engine stops working while seated

Postby certl » Thu Aug 11, 2016 3:08 pm

Thanks Norm and B31,
i check all cable and they are all connected well, i am wondering one cable hangs loose see pictures.
I also had checked the hoses from the carburettor, they are all fully plugged in.
Any more ideas
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Re: LML 125 4S automatic Engine stops working while seated

Postby B31 » Fri Aug 12, 2016 7:56 am

Is your Lml still under warranty ?
What is your Lml dealer opinion on your issue ?
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Re: LML 125 4S automatic Engine stops working while seated

Postby certl » Fri Aug 12, 2016 11:22 am

Yes, the LML is still under warranty, unfortunately I have only a very small workshop and they are overcrowded. It is very difficult to get a slot, I wait for days for a call back. :?
Thats why i tried is by myself.
The LML was at the 3000 km inspection in the workshop, where I had the problem already, but I did not know that it depend to the weight at this time. The inspection was carried out, they have set the machine up and suspected that it could be due to the oxygen sensor. The lamp was blinking 3 times. They have the machine set up as good as they can, and told me to test whether the LML still dies. Of course the LML died, thats why I am here :)
But now i read that 3 time blinking is not the oxy sensor. So I am a bit confused.
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Re: LML 125 4S automatic Engine stops working while seated

Postby B31 » Fri Aug 12, 2016 11:37 am

Ok so this Lml UK issue and not yours , as your scoot is still under warranty.
Do not try to fix something by yourself , let your Lml dealer manage the problem.

Call Lml uk importer and expose him your current issue ..he will put the pressure on your little dealer to speed up the fixing of your Lml ..

And do not pay for any charge
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Re: LML 125 4S automatic Engine stops working while seated

Postby certl » Sun Aug 14, 2016 5:11 pm

Just a reply, today a friend of me found the issue :D
I could not found it, cause me never opened the top under the seat.
If you look frome rear it is a small hoses on on the right side of the carburettor.
I take two photos of it. We cut the hoses 1cm and it works :D

Thanks all for help ;)
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Re: LML 125 4S automatic Engine stops working while seated

Postby B31 » Sun Aug 14, 2016 8:33 pm

Good news !
But which hose are you referring to ? A black one or a transparent one ?
Thanks
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Re: LML 125 4S automatic Engine stops working while seated

Postby certl » Mon Aug 15, 2016 10:12 am

Its a black one :D as you see on my photos
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Re: LML 125 4S automatic Engine stops working while seated

Postby LancsLad » Sat Aug 20, 2016 9:10 am

So was this black pipe blocked,? Did you just make a cut in the pipe? Has your scooter been Ok since doing this?
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Re: LML 125 4S automatic Engine stops working while seated

Postby certl » Mon Sep 12, 2016 9:13 am

Hi, sorry for the delay, i was on vacation. The black hose get wrong air, normaly the hose is under pressure. The hose got a crack so if i seat on it bad air came into the carburettor. I shorted the hose about 1 cm and put it again on the caeburettor, since this time the scooter works fine. :D
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