Aprilia cuts out once put in gear.

[121game121]

Okay the bike starts fine now (changed get,battery, spark plug), idles fine, everything all good.
But once driven in gear it just dies out.
Once i put it in gear and release clutch it dies out.
Anyone know what the issue is?

[Ichy]

Sidestand switch is not working or stuck closed?

[121game121]

[quote="Marki"]Sidestand switch is not working or stuck closed?[/quote]


Nope sidestand working fine, switch for sidestand works too.

[whitedevil]

jump the sidestand switch and see if it still happens

[loply]

Does it continue to run if you put it in gear but hold the clutch lever in?
____________________
Yamaha SZR660 Caution to the wind, the throttle pinned!

[121game121]

Yh it still runs if i hold the clutch in but in gear once released though slowly stars to die out.
I can ride it with the choke down in gear for a while then that dies out.

[TanacoiusD]

Join here if you have'nt already .. ??

https://www.125ccsportsbikes.com/forums/index.php?showforum=9

[P.]

[Acemastr]

[Ichy]

Just to be clear, does it cut out straight away or does to cut out slowly over a length of time?

[P.]

[Paxovasa]

Can you rev the bike while the clutch is pulled in and the bike is in gear?

Are you giving it enough revs while you slowly release the clutch?

Does it have a manual choke?

Are you warming it up before setting off?
____________________
Suzuki GSF600 K3 (in the fastest colour, black).

[Ichy]

[Paxovasa]

[Villers]

He said it will 'ride' with the choke 'down' for a while then cut out. Im taking this to mean he can get the bike moving in gear with the choke on so that would rule out the usual sidestand problems.

If his bike won't run under load then theres a bigger problem!

Are we still assuming this is an RS125?
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RS125 > CBR6 > SV650S > ZX636R > GSX1300RZ Hayabusa > 06 RSVR Mille > SV1000S > Street Triple 765 RS

[Ichy]

[121game121]

Okay i checked the whole bike over once again, even changed the main jet to a bigger size.

The bike run perfectly fine in neutral, idles fine, revs fine.

But once gear is selcted and clutched realesed it dies.
How do i correct the sidestand issue anyone know, if it is that the problem?

Thanks

[121game121]

[quote="##Paddy##"][quote="121game121"][b]Yh it still runs if i hold the clutch in but in gear once released though slowly stars to die out.[/b]
I can ride it with the choke down in gear for a while then that dies out.[/quote]

Sounds logical unless you are revving it :lol:

You say it can run on choke but dies after a while? Let your bike warm up and check its idle speed, if I run my bike on choke to warm it up and forget to take it off, in 2 minutes when I hit a set of traffic lights it cuts out, choke isnt needed once its warm and will cause it to switch off.
Increase your idle speed or try giving it more revs as you let the clutch out.[/quote]



I have tried what you said, but no hope, warmed up the bike, idles fine in neutral, but as soon as i put it in gear and release clutch (witht he choke off) it dies even if i try rev it.

[Paxovasa]

A problem with the carb, as the mix ain't right.
____________________
Suzuki GSF600 K3 (in the fastest colour, black).

[Ichy]

[Howling TerrorOutOfOffice]

Telling us what bike it is might help, or have i missed something? 50/125?
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Diabolical homemade music Bandcamp and Soundcloud
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The Harry Turner Project

[Ichy]

The best guess at the moment is that it is the RS125 that he brought
off ebay for £750 as a non-runner.

He has no knowledge of bikes since this is his first. It needs a compression check and the carb setting up correctly just for starters.

I fear the worst.

[N cee thirty]

[121game121]

[quote="Marki"][quote="121game121"]I can ride it with the choke down in gear for a while then that dies out.[/quote]

Is this still the case?

If you can ride it while the choke is on then its not the sidestand. The choke creates a richer mixture which might indicate that you are still running lean.

You need to answer some of the questions before people can work out what is actually wrong.

Why did you change the jets?
What was the original size and what have you changed to?
Was the bike running before you changed the jets?
Have you done any other work to it?
How long are you leaving it to warm up?
What is the tickover RPM?[/quote]



Its a Aprilia 125.
The previous jet size was 165. I changed it to a 120 because the previous was scummed up and was available at the time, but now changed it back to a 165 after cleaning it.
It drives on choke for a little while then dies.
I left the bike running in neutral for 10 mins todays (with choke off), it revs fine, throttle works, idles at 1100-1200.

The only thing i done was new battery (which it needed before i bought bike), spark plug change (ngk br9) and tightened up air box. Gona change speedo cable as speedo dont work though.

Im sure it must have good compression if it starts fine??
Once in gear and i release clutch just dies, confused!

[121game121]

[quote="rob yarrr"][quote="121game121"]

I have tried what you said, but no hope, warmed up the bike, idles fine in neutral, but as soon as i put it in gear and release clutch (witht he choke off) it dies even if i try rev it.[/quote]

lol my cg did this when the air filter was blocked[/quote]

Air filter looks clean and in good condition.