Hi there everyone, myself, my father and grandfather run a power equipment repair shop in NSW Australia (Honda & Jonsered mostly) and we're a bit stumped on a machine that came into our shop a few weeks back. One of these Victa Ultima 207cc machines with a Tecumseh ULT50 engine.
I've been working with them for about a year now and this is the first Tecumseh engine I've seen come in, so its safe to say I dont have a great deal of knowledge on engines from this manufacturer.
So this is where we're at with the engine:
Upon book in, this description was taken from the customer - "Runs but shuts down after approx. 5 minutes, upon restart machine repeats at less that 5 minute intervals - Repair and service as required"
The oil was overfilled & grotty so it was replaced, along with new air filters in the snorkel, new spark plug (NGK BM6A) and topped up the fuel and ran the machine for about 30 minutes with no trouble but when the throttle is opened to full, or the mower was pushed into grass, it dies.
We pulled the carby off and some of the gaskets were corroded or missing entirely so we ordered up some replacements from our supplier.
Jump to 6 weeks later (Parts had to come from the USA)and we disassemble the carby and clean it, put in a new o-ring, fit up the new gaskets & heat shield/air baffle.
Ran the machine again and it starts okay but once again it still dies if you open up the throttle too quick (even if its at operating temperatue) or push it into the grass.
So, I guess our question is where do we go from here? There doesnt seem to be a great deal of adjustment in the governer arm and we've covered all the other bases.
Sorry about such a long post, but all the facts first time round makes it easier for someone to help I guess. Thanks guys
