I too have a 2011 Victa Mustang VEX160 2 stroke, which has in the last 3 weeks decided to lie down and die. No spark. I removed the ignition coil (MA05697AZ with built in module) after some troubleshooting and took to the local mower shop, where they tested the coil and reported that indeed it was dead. My multi-metering found resistance around 14k ohms. My neighbour volunteered a coil with separate module (MA05556A), which has resistance around 6k ohms. It will physically fit in place. Bolt holes match. I plan to install and give it a go. My question: Can the module be mounted on the sheet metal cover below the crankcase air box, perhaps temporarily for trial, or must it be mounted outside/inside the lower crankcase housing. This will necessitate drilling and tapping two small holes in the casting. I'll attach a couple of photos of original coil and temporary replacement. Still like to get hold of a coil with built in module, as in agreement with a comment above, the mower has been an excellent starter. First pull every time!
The coil core has a good earth to the engine block so with the module it's best to earth that to the engine block as well , you can put the module somewhere else as long as it has a good earth back to the motor but the easiest place to install the module is near the underside of the carby ,a pop rivet to hold the module on or you could use a threaded small bolt with a lock nut but then the engine will need to be removed to tighten the nut or you can tap a thread in the cast iron.
Durrr! I should have thought of that! It was pop riveted on the old engine block I got it from. I thought of riveting it to the air baffle plate which is sandwiched between the engine block and the mower deck. I was just trying to avoid modifying the engine block. I imagine I'll have to drill a couple of holes anyhow. Pop rivet won't let go for sure! I'm hoping it will solve the starting/running problem. I don't want to junk it. It's been a good mower until now. Best I've ever owned. Thanks for your help Max.
I thought of riveting it to the air baffle plate which is sandwiched between the engine block and the mower deck. I was just trying to avoid modifying the engine block..
I'd avoid putting the module on the inside/on the baffle plate as there is so much grass and dirt / dust that the fan sucks in ,the coil has to be in there but best to mount the module on the outside casting it can also still get a lot of grass around the module on the outside but is easily cleaned away with an air compressor and air gun when it's under the carby.
