2002 summit carb adjustment

KVF 700

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My 2002 summit 700 is completely stock except for new v force reeds. the carbs have not been touched since new (other than being cleaned). At an elevation of 2200 ft, it runs good except for a slight hesitation between 4700-5000 rpm, or at about 40km/hr on the trail. However at higher elevations, this bog becomes extremely bad. The plugs seem to be a nice brown colour, what they are supposed to be. all other rpm ranges the sleds works perfect. any ideas what needs to be adjusted?
 

Barker

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Does it have RAVE valves? If so clean and inspect them!
 

snopro

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Get your dealer to run your serial number for the carb updates in 2002. There were a number of issues with them that year. Tube height was wrong, leaking internally inside carbs, jetting mess. There are bulletins for that sled. Its either that or the DPM.
 
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