Hi all,
I have an old 160cc 2 stroke. The type with the oblong exhaust, not the tear drop one.

I cant get it to start! I have cleaned out the carb. I can see that the poppet moves up and down freely, and moves with the throttle cable. It has a blue spark when i test it. I'm using a brand new plug. Champion CJ9. All fuel line and breather pipes are new and clean. The fuel is new and clean. I've cleaned the whole mower so it looks like new. I can see that fuel is getting in to the carb float chamber, the carb needle and gause is clean and block free.

I cant get it to start. When i remove the spark plug, the spark is blue, and i can see vapours puffing out of the spark plug hole when i pull the start cord. The compression seems good, when i have the throttle on stop position i can hear the engine sucking through the air filter housing.

It was running perfectly before this! I can't work out what the issue is. I've tried leaving it for a couple of days and still no luck. I've tried starting it without the air filter without success.

Can anyone point me in the right direction please? I've ran out of ideas and need some expertise.

Cheers,
Trev.