GY6 Questions.

[Solomonster212]

So I am building my GY6 right now. On the transmission cover it says HOWHIT. And on the cylinder it says JYMCO. Were these 2 brands originally paired together, or has somebody put 2 different engines together?

Also, does anybody have any idea how to remove the intake manifold? It's really stuck on there.

---------- Post added at 01:06 PM ---------- Previous post was at 12:24 PM ----------

I also need to know the torque specs or how to remove the rear drive pulley. I'm currently hitting it with the air impact @150 psi and it won't break loose.

I officially hate GY6's now. They Re the worst engines ever.

---------- Post added at 01:37 PM ---------- Previous post was at 01:06 PM ----------

And also the cylinder head is stuck on.

This is the most cursed project I've seen in years.

 

[Solomonster212]

The cylinder was stuck on because the paper gasket was stuck to both the block and the cylinder, holding them together. A rubber mallot broke it loose.

The intake manifold was stuck on because my studs were bent and stripped.

The torque specs for the rear clutch pulley is over 200 ft lbs. More than likely some idiot with an expensive air impact went crazy on it.