Re: F-12 sparkplugs

Posted by James Williams on April 15, 2007 at 11:34:09 from (65.73.13.20):

In Reply to: F-12 sparkplugs posted by J.J. from Afton on April 15, 2007 at 08:09:55:

JJ,Welcome to the world of the F12.I have one that will start with one crank and four others that wont start if you crank all day long.The carbs.are critical,The jets must be open enough to put gas into the cylinders.Timing is critical,Lubercation is a must,My f14 has new sleeves and rings and the motor is to tight to start by cranking.My f12 that usally starts started giving me starting problems and all it was I bent the fuel line so gas would gravity flow to the carb better.Each one of these tractors has different personallities.I also had a problem with to much oil in the air cleaner.Valves are critical,good vacum is a must.One of my 12 dont like either,I dont understand it myself,Sorry for rambling,Ill never understand why IH ever used fuel pumps.The best money I ever spent was for a rebuilt carb from YTMAG,I've had several people rebuild my carbs and only one has worked.They look simple but there not.The float setting is critical
JIMMY

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