Perkins 3 cyl gas carburator

bandyman

New User
Does anyone know of a replacement carburator for the MF 135 with a perkins 3 cyl gas engine. I can not get the Zenith carburator adjusted right. If I set the float where the book and carb kit instructions say (1 5/32) the gas just runs out of the carb. If I set it where the gas does not run out of carb then I can't get it to ref up. So does anyone know a carb that I can use on the MF 135 with a 3 cyl Perkins or how to fix the problem with this Zenith carb?
 
I have the same engine in my forklift, carb apart once for cleaning, still works fine. May need to check the main jet, may be partially blocked. Carb should still work OK if float is set 1/16 inch lower as mine is. Had to use hotter plugs as forklift idles a lot, kept gas fouling standard heat range plugs.
 
I have had this carb apart 6 or 7 times. The first time I cleaned and installed a carb kit. After setting the float as per the instructions with kit and reinstalling the carb when I turned on the gas it just ran out of the carb. I took it off again and reset the float and gas did not run out but after starting it would idle perfect but when trying to ref it up it would starve out and die. I have had the carb off several times since and rechecked all jets and reset the float but can't seem to find a happy mediam where it will ref up and not just pour gas out.
 
Two thing...first ALWAYS replace the float. after assy flip the carb over and back so you can hear that the float is not dragging along the side of the bowl.. Remember this, this engine is a diesel conversion, It has the ability to create to much hp so they made the jet "fixed" this leave a hesitation nothing you can do about this
 
Oh. So that's what causes than hesitation... like a 1970's ESSO commercial. Thought it was me doing something wrong again.
I found a few non carb issues throwing a monkey wrench in this engine... gas cap wasn't original, too tight, vapor? vacuum? lock, only one of mine that does that.
Timing... I threw the book away.. did it by ear, when it finally got some guts... which was after I readjusted the throttle linkage- and it has a gas pedal, that was limiting her really opening up... don't take long to know it's not a Continental... but got all the bugs out of it now...
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For hesatation you need to bore out main jet just a little. Same on Ford 3cyl gasser. A Marvel S. carb will work well also.
 
Thanks, I will. I did finally get the Zenith to work but then had it vapor lock after using it for about 45 minutes. I will check on the gas cap problem mentioned earlier or if any other solutions are available please let me know.
Thanks to everyone for taking the time to help. I really appreciate it.
 

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