My 80cc engine from China (eBay) has not started since it was assembled a week or two ago.
Fuel is getting to the engine, as the spark plug was wet when checked after cranking - for some reason it refuses to burst to life upon releasing the clutch. The engine will turn over after releasing the clutch level, and sounds somewhat promising, but will go silent as soon as I stop pedaling and pull in the clutch. The engine has never felt hot after trying to get it going.
I have replaced the spark plug with the NGK B7HS, and am quite sure that the ignition system is working (I pedaled with the plug earthed to the fuel cap, heard a fast clicking and electrocuted myself by accident - seems to me as if its sparking OK outside the engine, just not visibly due to sunshine).
I reassembled the carburetor, making sure to tighten everything well to avoid air leaks. The throttle mechanism is working.
I feel like there's not a lot more I can do to fix it without your help - could there be a lack of air getting to the fuel? Any reason for the engine components to be incredibly stiff?
Many thanks for any help that can be offered!
Ollie, UK
Fuel is getting to the engine, as the spark plug was wet when checked after cranking - for some reason it refuses to burst to life upon releasing the clutch. The engine will turn over after releasing the clutch level, and sounds somewhat promising, but will go silent as soon as I stop pedaling and pull in the clutch. The engine has never felt hot after trying to get it going.
I have replaced the spark plug with the NGK B7HS, and am quite sure that the ignition system is working (I pedaled with the plug earthed to the fuel cap, heard a fast clicking and electrocuted myself by accident - seems to me as if its sparking OK outside the engine, just not visibly due to sunshine).
I reassembled the carburetor, making sure to tighten everything well to avoid air leaks. The throttle mechanism is working.
I feel like there's not a lot more I can do to fix it without your help - could there be a lack of air getting to the fuel? Any reason for the engine components to be incredibly stiff?
Many thanks for any help that can be offered!
Ollie, UK