MF135 Perkins AG3.152 gasoline 3 cylinder questions

Thank you in advance for answering the questions I have!

I inherited a 1974 MF135 if my memory serves me based on the serial number.

I was able to find and download a operators manual and made adjustment to the carburetor with no luck. The exhaust fumes are so noxious it burns your eye with the fuel mixture so rich. It backfires, runs rough and is need of some serious TLC.

http://www.fidello.net/scott/Massey%20Ferguson%20MF135%20Operator's%20Manual%20(from%201974).pdf


The tractor was bought new by my grandfather and has always been barn kept so overall it is in good condition.

My plans are to rebuild the carburetor and a complete tune up and go from there to see how well it runs before I get into pressure testing the cylinders to see if additional work is required.

I have had diesel tractors and currently have a MF270 but never a gasoline powered tractor and have no reference to working on one.

So if you have experience with this model your tutelage is greatly appreciated!

1. I am going to start with rebuilding the carb and understand once I get the carb off to locate the number on the carb to ensure I get the proper rebuild kit. Please let me know your thoughts or suggestion regarding this issue.

2. Give a complete tune up distributor cap, rotor, points, condenser, coil, timing, wires and plugs.

So it has been since my teens since I have had to set the points so if you have suggestions please advise or any other suggestions you might have in the tune up phase. I am assuming I can just set the timing by adjusting out any valve clatter.

Once again thank you in advance for any help you may suggest it is appreciated!

Start with turning off gas supply then drain at carb. turn gas back on checking for a good stream at drain. If gas is old and stinks then replace. Never a good idea to throw a bunch of new
parts all at once as condensors can be bad new. Backfire is usually trashy gas, I'd drain the tank rinse and clean all the filters before carb rebuild. Check dist. cap for water and cracks,
clean air filter.

I will check the flow the tank is clean and with new fuel filter and bowl is clear.

As I stated in my initial post I cannot get the air fuel mixture set and this is leading me to believe it may have a bad float because it is running so rich the exhaust fumes burns your eyes and blowing blue smoke.

Thank you for your input!

The needle valve, and or the float is probably stuck open.

Any suggestions on getting either unstuck

Also check the air filter and make sure there isn't any restriction there.

Take the carburetor off, take it apart, and clean it up really good.

That is why I'm going to rebuild the carb