Recent content by MrBedford

I think the nozzle tube on this mower has had some rough treatment by a previous owner which causes it to leak. It already had one washer fitted, I will try another. The Victa manual gives good instructions on how to make a homemade water device for testing the amount of vacuum produced in the...

Ok, I tried the blow/suck test as suggested and the diaphram seems to be seated ok and working. Sucking on the hose caused the engine speed to come back to idle and blowing increased the revs. After that, I did a re-check for other causes of a vacuum leak and found that the hose connection to...

Thanks for the informative reply. I am aware that high revving issues can be caused by vacuum leaks, or an ill fitting carby diaphragm, and/or a poor fitting "O" ring on the engine crankcase. I'm pretty sure I've eliminated those possible causes but the problem still exists. As you probably know...

Hi, A friend of mine owned a Victa Professional 550 self propelled mower, which had no spark and hadn't run for a long time. He got sick of trying to start it, so he gave it to me for nix. I fitted a new G4 carby kit and Decompression valve, I then solved the no spark problem by removing the...

As can be seen in the photo in my first post the very end of the valve stem where the retaining clip fits on is completely broken off, the plastic plug where the hose fits on was also destroyed. Rebuild kits don't supply these parts, so I ordered a complete decompression valve from Green Acres...

Thanks for all that information. After your first reply I took another look at my mower and found your advice was spot on. I realise now that after I'd fitted the new G4 carby kit I foolishly connected the vacuum hoses the wrong way round as I re-fitted the carby to the engine. I had the hose...

Thanks very much for the informative reply. I was leaning towards a timing issue but your suggestion about the vacuum signal makes a lot of sense. I recently fitted a new carby kit but did not replace the hoses, so I will rectify that situation shortly and see if that makes a difference to the...

Hi folks, I'm new to this forum so excuse me if I've posted this question in the wrong hole. I own an old Victa Utility lawn mower with the original Victa AE 054 AA90 Powertorque engine. The mower has been well maintained over the years and runs perfectly since it was built over 40 years ago...