2kzx12turbo
Parking Attendant
Posts: 8
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posted May 06, 2012 01:25 PM
turbo not spooling completely
my zx12 turbo isnt spooling up completely. the turbo isnt froze up i can hear it whistle and the impeller spins freely and easily with my finger. the wastegate is recently lubed up and not stuck open. i noticed recently that my lockup clutch isnt locking up all of the time just once in while...before i had problems with the bike it ran good except for the shifting pin broke the weld inside of the clutch cover. maybe it fried some plates??? the bike sat for about a 1.5 years before i bought it. im stuck the only things i could think of are the plugs or the clutch. around the higher rpms it breaks up pretty bad and im getting horrible gas mileage..heres everyting that was done to it since ive had it.. valve cover gaskets and head gaskets..new mr turbo headers.( old ones cracked when i was riding it hard one nite and that started the digging into the bike) had a compression check and the motor is fine. the bike still runs hard and i can feel the turbo working a little bit but i dont think its working fully. took it to a dyno shop and they said the wastegate isnt opening so theres a loss of pressure somewhere.??? mallory racing fuel pump and regulator are ok..supposed to have 43 pounds of pressure per mr turbo..before the headers broke i could here the the wastegate working now i dont hear it. also my boost pressure guage isnt working and i know the guage is good.it has a good connection to the wastegate . the guage was tested..thats all i can think of..an ideas.. besides that the bike is flawless and runs excellent accept after im on it hard it backfires.. i can still get about 110 miles on a tank and ride it daily..ive also resealed the airbox and all of the hoses are tight..maybe adjust lockup??? any ideas would be appreciated!!!!!
  
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