Question about 2003 ATK 500

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No spark Ok so my newly purchased atk 450 mx seems good to go

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I have inspected the engine oil filter and found very little two sections of the filter showed a little metal but not really more than you would expect from a newly broken in bike . The fuel pump continues to run at all times I disconnected the fuel pump removed the plug and checked it for spark: no dice. The 10 amp fuse in the back is fine, I assume that is the one and only fuse on the bike. ' Is it safe to assume that my bike has no spark (and fuel pump runs constantly) because the ECU is toast? I did not check for power from the magneto or check the pulse generator out yet....i guess i just assumed the ecu was junk where can I get the part?,Best to find someone nearby with a D&M kit to test your ECU for communication. If no one is available, your ECU can be sent to Canniboomer to be checked for proper function. If it fails, then he can send a new or possibly a used replacement. Don't forget the Diode update is likely necessary on your bike. ,,,

Posted on Nov 10, 2008

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and have done more working on the bike than riding the bike. Unfortunately I'm back in that position again of the bike not running after getting it running last fall then overheated and wouldn't start again. I think that I'm going to spend the money to have someone go through my 450 mx and rebuild and update some of the internals. Was thinking of just bringing the entire bike to someone and that way I know it would be ready to go when I picked it up. The bike is in Boise (would be pretty easy to get it to ATK), but am working in Seattle area during the week right now for a while longer. What are the options on this and who would you recommend? ,Since you are in Idaho I would recommend Blackwidow. They are a site sponser. ,,,

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