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I recently purchased a 2002 AC ZR800 Cross Country EFI and it hasnt been running up to par. I hesitates at various speeds and as if it is only getting gas to the engine some of the time. I am assuming with EFI that you cant do a lot of tuning but only replace the EFI module.

Anyone have any ideas? It is at the dealer right now but they dont seem to know what the problem is.
 

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nope sorry- but i like your name cross country. xc racer= cross country racer


When in doubt- Throttle out!

'99 XC SP 500
 

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Hey man, what have you checked out so far?

Here's my list of what it could be.

1) spark plug
2) spark plug wires
3) bad gas
4) bad EFI computer (doubt it)

Give us some more details

2002 Arctic Cat ZR 800 EFI

founding member of the Arctic Cat Mind Control Team......you will believe!!​
 

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2002? Don't mess with it and screw up your warranty, take it back to the dealer.

He who loves not his country can love nothing
 

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Your best bet would be to do as Shanet963 said and take it to your dealer that way you can't be blamed for screwing around with it.

Trees don't make the greatest brakes...
 

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exactly, 2002 model=still under warranty=dealers headache, not yours
 
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