Bogging or engine slows down when turned to full throttle.

Bogging or engine slows down when turned to full throttle. I have a brand new 66cc motor kit that mounts onto a bicycle frame is known as an 80cc Skyhawk but in Canada it's 66cc.
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Total answers/comments: 5

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bert [Entry]

Check to make sure you don’t have a leak on the intake manifold or the manifold side of the carb’. you can check this by dribbling a little oil along the joint to see if it gets sucked in. If this is the case, then the engine will be sucking in air without the petrol vapour to ignite and so causing a ‘flat spot’.

bert [Entry]

it could be getting too much air from a leak somewhere

bert [Entry]

I'm having the same issue brand new engine brand new carb all set up corre you but bogging down

bert [Entry]

Remove your air filter temporarily. Does this help or worsen the symptoms you described?

bert [Entry]

On my 50cc 4 stroke I had a problem with it bogging down at full throttle. But when I'd let off the throttle a little bit I could feel it accelerate a little. Problem was that it was getting too much fuel. All I had to do was adjust the air/fuel screw.