Did You just get this engine?? Let me go out and check my two that I got on the Hobby People Sale a while back. You really need the pressure for good fuel flow to the carb.

OK, I just checked both of the engines I got a couple months back and both have the nipple in the muffler, same as my older one and my O.S. 52 Surpasses.

If it is a new engine, I would contact Hobby People and tell them you need a muffler, yours is defective.


Don