Sheldon – GV125S EFI 2021 – UK

[Sheldon – GV125S EFI 2021 – UK]

I have taken the airbox and checked the orings and there is no debris and they look fine to me.

I cant see anything coming though but I will try sealing it just incase.

I did drop the bike on its side not too long ago bloody gravel on the road caused me to slip and drop the bike. Low speed but still.

I will give these suggestions a go over the weekend and come back with an update :). Thanks for the advice :).

 

[Sheldon – GV125S EFI 2021 – UK]

Here are photos of the cracks

[Sheldon – GV125S EFI 2021 – UK]

Hi all,

I know this is an older thread/post but I am having a very similar issue. Though mine is extremely intermittent.
for example I did my 2 mile trip to work and she was fine then left work and did a 3.2 mile ride to Hobbycraft and it was also fine. But leaving Hobbycraft to go the 5 miles home it decided to do it. I killswitced and turned off the ignition then restarted the bike and everything was normal again.

This has been happening for a few weeks randomly like this for both long and short trips. I have replaced my spark plugs and HT leads hoping this would solve the issue as my old ones were gone.

I have checked the idle throttle position sensor as above and the only thing I have noticed is in the airbox between the two intakes to the engine there is a crack/split right in the middle, it doesn’t go all the way through but could this be the cause? If so any ideas on what would be the best fix?

If it helps this all started happening after I went to a jet wash to clean the bike. (Original HT leads on at this time so this is why I suspected those being the issue.

Any suggestions would be much appreciated :).

[Sheldon – GV125S EFI 2021 – UK]

So an update, an embarrassing one but one none the less. Turns out the only issue with the bike is the gear sensor and a loose clutch cable. I got a friend of mine who’s very knowledgable about bikes to take the bike out to ride it and see if the gears all felt right and it was shifting etc.

 

He came back after riding it and confirmed all is fine other than a loose clutch cable and the gear sensor showing the wrong thing.

What had happened:

 

The gear indicator showed one gear higher than it should as soon as you get out of first. This caused me to panic about the bike issues and be hyper aware of noises and issues. Then the clutch wasn’t functioning correctly so where I thought the bite was it wasn’t and this caused the power loss as I was preparing to shift gears.

 

The vibration was caused by me using the gear indicator even though it was wrong. I was in a gear that was too low for the speed I was going but didn’t realise with my fogged mind.

The idle is also normal and sitting around 1600 as per the manual but based on the dial I kept reading 2k as in my haste I was sub consciously rounding up.

The ticking noise is there and it’s around the clutch area of the engine so I will be changing the oil and checking the clutch basket to ensure it’s not rattled loose or what not.

I apologise for wasting your time and Thankyou for the response and all the helpful tips though! I will be looking to do all the things you have suggested anyway as proactive is better than reactive.

I did have another question regarding the location of the gear indicators sensor do you have any idea on where this is located so I can try cleaning the contacts?

[Sheldon – GV125S EFI 2021 – UK]

The bike is also idling at 2000 even when warm.

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