[Greg40]

I purchased a Templer Tiller rotavator with 4 stroke Aspera engine in the 1970's, ran it for a few years then used it again in the late 80's a little.
   Last week I decded to start using it again.
 I emptied the fuel and cleaned the tank and filter, removed the flywheel and sorted the electrics.
 Now it starts first pull but only runs for a couple of seconds and dies, even though the revs are quite high. another couple of pulls and its the same again.
 It will start and run on tickover but as soon as the lever ( opens the butterfly in the carb via a spring) which controls the engine speed/power moves across it dies.
 Has anyone had any experience with this engine
 

[Gwiz]

If I remember correctly, remove the carb bowl, and the main jet is in the tube that the carb bowl was held onto. It's a brass jet, about 1 1/2" long, and unscrews out from the housing anti-clockwise. you could try removing the carb, holding it upside down, and giving it a good soaking in carb cleaner, but I expect that it wil need to be taken out.
I expect that it's quite tarnished from stale petrol, and needs a good clean.
Let us know how you get on.

[Larkshall]

If I remember correctly, remove the carb bowl, and the main jet is in the tube that the carb bowl was held onto. It's a brass jet, about 1 1/2" long, and unscrews out from the housing anti-clockwise. you could try removing the carb, holding it upside down, and giving it a good soaking in carb cleaner, but I expect that it wil need to be taken out.
I expect that it's quite tarnished from stale petrol, and needs a good clean.
Let us know how you get on.

Sounds like the old motorcycle problem, grass seed in the jet.

[Bulldozersanddirt]

Hello,
    I have had a cultivator with Aspera engine since I was around 18 years old! (I am now 52) It came from a tip in Nottinghamshire and now lives with me in Western Australia.
Does your engine have a diaphragm carburettor? This can be recognised by the lack of float bowl underneath it; it has a sort of flat plate around 30mm square with 4 screws (from memory). If it has then chuck it away and find a float type carb to fit. This was one of the best mods that I ever did, and I found the carb at a tip too. Diaphragm carbs are a real pain whatever they are fitted to, and there doesn't seem to be a good reason to have one on a tiller as my Gardenmaster was fitted with either as standard. If the carb is a float bowl type, then it probably needs a clean, and may then need the mixture jets twiddling with to get it to run well. Take the carb off and dismantle it on a newspaper on the kitchen table: take note of where all of the bits came from! If you are still having grief, post again and I will take some pics of mine.
Regards,   Bulldozersanddirt