HELP ! my bike won't stay running.

[bekbek]

Hi, my motorbike is a Honda NSR 125. this morning i set off, got about four hundred metres and then it stopped. so i did the usual check the fuel etc. and couldn't find a fault. i tried to start her up again and it was ticking over just not firing. after about five minutes it started to i set off again. ten seconds later it happened again. so after a while it started and it did it again. this happened another four times. and eventually i had to walk it home. its almost as though the emergency stop button is on. but it isn't.. any idea's as to what it could be?

[Benson_JV]

1) Write proper sentences please, it makes it easier to read.
2) Try spraying some WD-40 or contact cleaner in the killswitch, might be a bad connection.
3) Check the colour of your plugs.
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Willson - "If you go out on that CBR600 in the winter, you're going to do more miles on your side than on your wheels."
Riding: CBR600FW Driving: Audi A6
Previous Bikes: '96 Bandit 600, '96 GPz305

[G and J recovery]

put a new plug in,

i get these in alot to fix normaly , the ht lead corrodes were it screws in the plug cap,
unsrew cap cut a couple mil of and re screw cap on fit new plug
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glen

[doggone]

^ would agree, do they have auto-choke ?

[slyrob]

no auto choke but on the NSR I had the choke cable had a habit of sticking which took a couple of efforts to clean and lube before it was resolved, it caused similar problems to the OP. Also make sure you have the right plug, BR9ECS is the standard one i think but a lot of people swear by the iridium plug upgrade however mine ran far better with the standard plug (de restricted).
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Pitslayer wrote "it could be Ndubz.....ruining this once great place with donkey gobbling loafer knobbing "music".
silky666 wrote "In my eyes, when you shake cocks with the devil, you may as well go for the full reach around"
Villers wrote "as reliable as a ginger stepchild on smack"