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View Full Version : excessive base pressure quick question 1983 200e ytm



dear140
06-17-2011, 09:31 PM
alright so i finally got my machine running after rebuilding the carb, and now it runs but the base pressure was so great that it blew oil into my airbox. this caused all of my neighbors to think that my house was burning down, but on the bright side suppresed the mosquitos lol. i thought it was sticky valves, but ends up theyre fine. so took off the engine and jug and i got seized piston rings. once i replace the piston rings and hone and such should my yamahauler run good?

dear140
07-05-2011, 06:21 PM
still trying to fix it. first got a broken ring from the dealer, then asked for new ones, they sent those in another four business days, then the rings didnt fit the stock piston, as they ordered wiseco rings which only fit wiseco pistons. another threedays(closed saturday, sunday and monday thr fourth). ordered fitting rings today, should be coming in 4 days,so all together about 20 days or so. kind of sucks but the dealers were excellent as far as working with me.