Hello, this sounds like the trouble I had with my mf 135. The cause was a small filter in the fuel tank was partly blocked. You couldn't see it through the fuel cap hole.
The solution was as Plumbstraight says with the compressed air, blow back into the tank and this clears the blockage to get mobile .( NB take the fuel cap off first). A permanant fix in my case required cleaning the fuel tank. Good Luck.
The solution was as Plumbstraight says with the compressed air, blow back into the tank and this clears the blockage to get mobile .( NB take the fuel cap off first). A permanant fix in my case required cleaning the fuel tank. Good Luck.