Engine Trouble Peculiar Noise

[mepsinas]

Ticking noise at idle?

 

[Chainlube]

All I hear is chain ticking off something, engine case, chain guard, or ??? What does it sound like when it's not moving?

 

[mepsinas]

All I hear is chain ticking off something, engine case, chain guard, or ??? What does it sound like when it's not moving?

 

[mepsinas]

It should sound like this, right?:

 

[Chainlube]

Pull that side cover off and look behind there, it wouldn't be the first time a kit got sent out with some loose parts. Check over the coil and mag to make sure they aren't loose.

Now if they are loose, wrap a piece of paper around the mag before tightening up the coil so you maintain the spacing.

 

[mepsinas]

Pull that side cover off and look behind there, it wouldn't be the first time a kit got sent out with some loose parts. Check over the coil and mag to make sure they aren't loose.

Now if they are loose, wrap a piece of paper around the mag before tightening up the coil so you maintain the spacing.

I am fairly confident the noise is coming from inside the cylinder head. I took off the magneto and bevel gear/wheel covers and didn't hear any difference there. When I put my fingers on the exhaust pipe near the engine, it dampened the rattle some.

 

[mepsinas]

I added another bottom gasket, thinking it might be clearance-related but no. One guy in another forum suggested it might be tapping on the head gasket, but it only happens at idle, after the engine warms up.

 

[Wrench]

Noises are amplified with these Aluminum engines. It could be some piston slap. Normal for a cheep China engine

 

[mepsinas]

new engine noise? might go away?

 

[Wrench]

new engine noise? might go away?

Or explode - Chinese Grenade