[andyfrost]

Darren , obviously the Carb and magneto parts are Villiers , as this engine is unique to Atco , I suspect that they had this produced by Villiers at their design/request.
I’m almost certain I have one of those floats , and more than likely a good bowl , that you are most welcome to FOC. I’ll have a gander in the morning.

Andy.

[andyfrost]

Darren , it’s an Atco/Villiers , only ever used on Atco products.

Andy.

[andyfrost]

John , the needle and seat assembly is common to all those variations of Villiers carbs.

Andy.

[andyfrost]

Angus , very well put , it’s amazing the ammount of “perfect paint jobs” you see around being spoilt by oil leaks , often caused by not enough attention to relatively minor points like a correctly working breather.

Andy.

[andyfrost]

Regarding the oil leak , check and thoroughly clean the breather , I would suspect from your description of the engine internals that it’s not working.

Andy.

[andyfrost]

Didn’t Mechanised Gardening take over Geo Monroe ?? , I seem to recall their last location as Great Gransden in Bedfordshire.

Andy.

[andyfrost]

Well done John , that is in remarkable condition , I was the other mug bidding for it……should have gone a tad more. The seller seems a really nice chap , I had a conversation with him on the phone during the week.

Best Andy.

[andyfrost]

John , are you sure it’s a MK40 , these usually had MK20 or MK25 fitted.

Andy.

[andyfrost]

Auto Culto Juniour , if it was nearer me I may have even risked a tenner on it.

Andy.

[andyfrost]

Yes Charlie I got the renewal form , but on checking to pay , it says I’m paid until 2014 , hence my other post on this.

Thanks Andy.

[andyfrost]

John , your problems I would say are Carb related. From memory the float level is not adjustable , the needle being fixed in the float , so I’m not sure what adjustments you have made.
Before going down the valve route(which I have strong doubts are not your problem) , firstly THOROUGHLY clean the carb , try it again , if problem persists , raise the slide fuel needle slightly and try again.
Be VERY careful when re-assembling , it is very easy on these carbs to damage the top of the float needle , check this on yours , they have an extremely fine tip , and the slightest damage will result in flooding issues.

Andy.

[andyfrost]

Mine arrived OK today , many thanks to all involved.

Andy.

[andyfrost]

I must admit I’ve never seen a fourstroke 700 , what were the engine options.

Andy.

[andyfrost]

That was my initial thought Charlie , hence asking if it was a rotavator , it’s the only machine that springs to mind as having an air intake running through the tank.

Andy.

[andyfrost]

Is it actually a small two wheel tractor , or a rotavator ??

Andy.

[Author]

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