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  #21  
Old 27-12-2011
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Keg Keg is offline
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The kill switch might be the cause. Earlier ktm's were known for doing this. It is the black and yellow wire. Just follow it back to the plug and disconnect it. If it runs, bobs you uncle.
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  #22  
Old 28-12-2011
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could be a weak stator shorting once the bike warms up
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  #23  
Old 28-12-2011
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kill switch disconnected, one mild electric shock, runs like a dream, thanks for your help keg!!
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  #24  
Old 31-12-2011
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trav444 trav444 is offline
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Quote:
Originally Posted by jasemac View Post
Help, have an 2009 KTM 400exc that likes to stop in the middle of the bush on random occasions, checked for spark and none found. Get the bike home and the bike has spark and runs like a dream. Intermittent fault somewhere, can anyone help? no idea were to start.
My 05' ktm did the same and mine was wet inside a connection under thak tank.

I did the kill switch test first then dissconected all the electrics one by one and one was black... dryed it out taped it for water proofing . was all good
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  #25  
Old 04-03-2012
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My 03 crf450r was cutting out every 30 seconds at any throttle. was starting and running perfect but would just die. Got it out of the s/t and onto the fire trail then was back to running perfectly. I figured it was a dodgy wire or water in the fuel bowl but have just thought mabey the hot start lever wasnt springing back. What do bikes ride like with the hot start on? Cheers!
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  #26  
Old 04-03-2012
CentralCoastWaz CentralCoastWaz is offline
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Suck. Squeeze. Bang. Blow.

That was how my teacher explained it when I was an apprentice.

Fuel in, compression, spark and exhaust out. You got all them she should be a goer.
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  #27  
Old 13-04-2012
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kuzman86 kuzman86 is offline
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Quote:
Originally Posted by Keg View Post
The kill switch might be the cause. Earlier ktm's were known for doing this. It is the black and yellow wire. Just follow it back to the plug and disconnect it. If it runs, bobs you uncle.
Absolute GOLD.

This saved me from killing my bike on day 1 of 4 riding in south-west WA.

Thanks
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  #28  
Old 14-04-2012
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had a mate who air was the problem he spent hours pushing his bike up a big hill and trying to roll start...left a rag in the airbox... About a year later he had the same issue..after awhile we all suggested checking his airbox for rags....sure enough.
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  #29  
Old 17-04-2012
AceHoll AceHoll is offline
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Quote:
Originally Posted by benk7659 View Post
how about the spray can you can buy called start ya bastard , spray it in the carby intake and crank the engine see if it starts .
Like someone said to me 'That [stuff] is like heroin for cars."
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  #30  
Old 28-01-2013
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Bushmaster Bushmaster is offline
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Quote:
Originally Posted by Boydy View Post
had a mate who air was the problem he spent hours pushing his bike up a big hill and trying to roll start...left a rag in the airbox... About a year later he had the same issue..after awhile we all suggested checking his airbox for rags....sure enough.


I've think I've done a few stupid things like that with a mate and his old MX100
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