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Let's try a little test to see if we can narrow down your issue. Remove the spark plug and pour a teaspoon of mixed gas directly into the plug hole. Let me know what happens and we will continue.
can't see any spark
changed ignition module still does not seem to be a spark. how fast do I need to turn the wheel ? can I do it with my hand fast enough to be able to see a spark? thanks
No you can not spin the flywheel fast enough with your hand to get a spark, I believe the min RPM's are around 300 to get the coil to light off.
You need to do a compression test. If you have spark and fuel (even added manually) then this is the only other possibility. Let me know once you get a compression reading and we can continue