try posting this question on the MH/MF discussion board here. That's where the MF experts reside. I have a MF 135 and 165, and you could first check the breather tube that comes out of the top of engine. If the tube is crimped or clogged it will create too much backpressure. Its happened to me. Disconnect breather tube and clean out and make sure the tube exit point is clear. Also, after cleaning try blowing into tube to check obstruction in cover screen where tube originates - but you must remove oil filler cap first when doing this. Like I said, post this question on the MF board and there are many good folks there to help you with your MF 150. Good Luck.
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Today's Featured Article - Upgrading an Oliver Super 55 Electrical System - by Dennis Hawkins. My old Oliver Super 55 has been just sitting and rusting for several years now. I really hate to see a good tractor being treated that way, but not being able to start it without a 30 minute point filing ritual every time contributed to its demise. If it would just start when I turn the key, then I would use it more often. In addition to a bad case of old age, most of the tractor's original electrical system was simply too unreliable to keep. The main focus of this page is to show how I upgr
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