Spark brown and spark grey on skidoo 2007 summit 800r fresh rebuild - REV Chassis - Mountain Sleds - DOOTalk Forums

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Spark brown and spark grey on skidoo 2007 summit 800r fresh rebuild

Spark Grey Skidoo 800r

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#1 pierreporte63

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Posted 15 February 2021 - 01:07 PM

Hello , I have a big difference in my spark I need your advice for the grey spark , you can see on the photo ,
I already tried to turn out 1/4 the fuel screw for idle richer ,
Does I need to worrying about the grey spark ? Is it too lean ?

My cylinder was washed for the rebuild could be small aluminium powder?

I was thinking about lift up the needle jet for more richer high rpm only on the grey side ?

My sled run fine no overheat and pull strong at 8000rpm each ride , start 3rd pull cold and 1st hot

I attached a photo for help you to give me.the right advice !
Thanks

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#2 Empire087

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Posted 15 February 2021 - 01:58 PM

Which side is the grey one?  mag side is always leaner that pto.  have you cleaned the carbs at all?  Might be worth your time to go ahead and replace the pilot jets in both sides.  See if that helps correct the issue.  The pto side if that is the case looks perfect.  


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#3 pierreporte63

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Posted 15 February 2021 - 02:02 PM

Hello , I don't know what is pto and mag , I'm french, the grey one is on the stator recoil side , the brown is the cluch side :)

Edited by pierreporte63, 15 February 2021 - 02:06 PM.


#4 krm

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Posted 15 February 2021 - 02:18 PM

Mag= stator side



#5 pierreporte63

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Posted 15 February 2021 - 02:24 PM

So it's normal it's leaner!

How can i correct it ?

#6 pierreporte63

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Posted 15 February 2021 - 03:53 PM

Just down 1 step the clip of the needle for get richer , it don't change the color , will try 2 clip , More rich one ?

#7 pierreporte63

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Posted 15 February 2021 - 09:35 PM

so i put the needle at maximum rich setting on the mag side and the spark still grey 







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