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Moped cuts out on tickover........

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ray 316
Two Stroke Sniffer



Joined: 11 Dec 2009
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PostPosted: 06:40 - 06 Apr 2011    Post subject: Moped cuts out on tickover........ Reply with quote
My wife has a Honda vision NE50 and it has been standing in the garage over the last 4 months during the bad weather..
Anyway l went out to start it up yestaday, it still had a bit of fuel in the tank and l added some more... than l kickstarted the bike which took about 10 trys before starting as l presume it was filling the carburettor back up.
So anyway it started and l revved it but everytime l released the thottle to tick over it just cuts out. Sad ideas what be causing this and what l can do to sort it out as the missus wants to get back out on it now.. Thanks
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bass2k8
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Joined: 13 Feb 2011
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PostPosted: 08:20 - 06 Apr 2011    Post subject: Reply with quote
Yeah it sounds like you've got a clogged up carb. Changing the idle speed temporally isn't a good thing, so I'd recommend that you clean your carb, just as Dr Quack said.
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Peugeot Speedfight 2 100 Prost, 01 Plate, 2000 model.
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ray 316
Two Stroke Sniffer



Joined: 11 Dec 2009
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PostPosted: 21:10 - 06 Apr 2011    Post subject: Reply with quote
Dr. Quack wrote:
I think sediment has run it's way through your carburettor and partially blocked the pilot jet. You could try turning up the idle with the idle screw for the time being, but I think you may need to take the carb off and clean it out, Blow out the Needle jet, pilot jet and main jet and clean the base of the carb, empty all fuel, rinse tank out and put new fuel in.
You are absolutely correct, l took of the carburettor tonight and took the base of the carb and there was a load of red sediment gathered in there. l wash this out with clean petrol .
l then took out the needle jet, and main jet , and float valve and washed the carb , l also washed the main jet and this was not blocked. l have no air pressure device so all l did was blow into the holes/jets.
l then put the carb back together and started the bike, this time it did tick over so l took it around the block and it was pulling back and slowing down then picked up and slowed down as l increased the throttle revs but ticked over Confused .
Do you think there sediments back in the carb or more coming in from the tank..
Would l have to take the tank off to flush it out and what do l use and best methods to clean it out...
Also where is the pilot jet..
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bass2k8
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PostPosted: 21:22 - 06 Apr 2011    Post subject: Reply with quote
The best way to probably clear out the carb is to take it out for a nice long ride, at least half an hour, and it should clear it up. If not, you may need to check your fuel filter, and also clean your fuel tubes.
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SpannerMonkey
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Joined: 26 Aug 2010
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PostPosted: 21:26 - 06 Apr 2011    Post subject: Reply with quote
bass2k8 wrote:
The best way to probably clear out the carb is to take it out for a nice long ride, at least half an hour, and it should clear it up. If not, you may need to check your fuel filter, and also clean your fuel tubes.


Exactly what he said... Although check your fuel tap as well as it's probably full of crap too.
I didnt read too much of this post, just skimmed over it lightly
What you've gotta ask yourself is where is the sediment coming from?
My first guess would be a rusty fuel tank.
If it is... You have 3 choices.
A. Get another fuel tank
B. Cure the one you have and hope it's not too far gone
C. Ignore it, it WILL get worse... and it WILL rust through (Like my RXS tank did).

By the way... Dont get rid of the vision. Ever. Epic mopeds of retro-win.
Noone appreciates them yet. But wait till there are none around. The Honda melody recieved the same treatment and now they're worth a pretty penny
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ray 316
Two Stroke Sniffer



Joined: 11 Dec 2009
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PostPosted: 23:29 - 06 Apr 2011    Post subject: Reply with quote
bass2k8 wrote:
The best way to probably clear out the carb is to take it out for a nice long ride, at least half an hour, and it should clear it up. If not, you may need to check your fuel filter, and also clean your fuel tubes.
l have'nt got a in-line fuel filter after the petcock to carb. Is it worth putting one on , like l have said l have a petcock if thats what its called attached under the fuel tank with 2 pipes. One to the carb and one back which l think is the vacuum line, l think the petcock is a sealed unit so if this have tank sediment inside it is there anyway l can clean this out without damaging the diaphram inside...
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bass2k8
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PostPosted: 23:34 - 06 Apr 2011    Post subject: Reply with quote
ray 316 wrote:
l have'nt got a in-line fuel filter after the petcock to carb. Is it worth putting one on , like l have said l have a petcock if thats what its called attached under the fuel tank with 2 pipes. One to the carb and one back which l think is the vacuum line, l think the petcock is a sealed unit so if this have tank sediment inside it is there anyway l can clean this out without damaging the diaphram inside...


I don't have much experience as I'm knew to this, but the thing with 2 pipes attached to it below the fuel tank sounds like it will be your fuel tap, one tube being the fuel pipe and the other being a vacuum pipe. Where the fuel tap is connected to the fuel tank, there should be a fuel filter. If your moped doesn't have one, then that will be why theres sediment in your carb. I don't know if this applies to your moped, but it applies to my peugeot speedfight Smile
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ray 316
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Joined: 11 Dec 2009
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PostPosted: 22:53 - 07 Apr 2011    Post subject: Reply with quote
l have bought a fuel filter for the moped, l'm going to take the tank off and clean it out and also clean the fuel lines and carburettor..
By putting a fuel filter in the fuel line will it be ok or could it affect the running of the moped..
Also what is can l use to flush the fuel tank out when l've taken it off..
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bass2k8
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PostPosted: 23:13 - 07 Apr 2011    Post subject: Reply with quote
ray 316 wrote:
l have bought a fuel filter for the moped, l'm going to take the tank off and clean it out and also clean the fuel lines and carburettor..
By putting a fuel filter in the fuel line will it be ok or could it affect the running of the moped..
Also what is can l use to flush the fuel tank out when l've taken it off..


Clean the fuel lines with some petrol, and then take a hold of one end and spin it around in the air for half a minute to get rid of most of the petrol, change ends and do the same. Then leave it to dry for a couple of minutes.

Clean the carburettor with some carburettor cleaner, making sure you clean the float bowl, main jet, pilot jet and idle jet. Also you can clean the choke with the carb cleaner as well.

With the fuel tank, you could put a bit of petrol in the tank and swish it around a bit then empty the contents into a bucket. But to be honest, you probablly wouldn't need to clean this as this is what the fuel filter is designed for.

If the fuel filter was not originally there, then I cannot say otherwise. But to be honest, it shouldn't affect it at all, should make you have less sediments in your carburettor.
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