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Old 04-11-2013, 09:57 PM's Avatar is online now
MC Maniac
Join Date: May 2010
Boat: 1989 MasterCraft TriStar 190 SE
Location: Houston, TX
Posts: 3,568
^ is your PCV valve hooked up to the flame arrester, and a stand alone breather on the other valve cover? You can't do that you will get misfiring and stumbling when you take it under way. If you wanna run the round breather thats fine just put it on the port side valve cover and move the pcv adapter to the starboard valve cover and run the pcv valve and hose to manifold vacuum either the factory spacer under the carburetor or a nipple on the intake manifold.

Look here for the proper way to hook up pcv fourth post down is a good picture

1989 MasterCraft TriStar 190 SE

Last edited by; 04-11-2013 at 10:14 PM.
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