Bob V

I recently purchased a supply of the 1/16" and 3/32" chrome steel ball bearings used for check valves in most of the O&R carburetors. These are high quality ball bearings precision rated G25. If you need some, just drop me a PM. 

I recently purchased a supply of the 1/16" and 3/32" chrome steel ball bearings used for check valves in most of the O&R carburetors. These are high quality ball bearings precision rated G25. If you need some, just drop me a PM. 

SUCCESS...!!
 
Another TT300 comes back to life. Wallfish, without you this would have been just another one of those non-running display models. I cannot thank you enough...

I will have to take a second mortgage on the house for that one....  Thanks...!!

I used chainsaw mix in mine, but I add a few extra drops of oil in the tank just to be safe. These engines of the 1960's are not built like the engines of today. A small amount of extra oil in the gas makes for a happy two stroke.

I know it seems strange, but the intake manifold, where it bolts to the engine block does have two identical gaskets. The first time I saw that, I thought it was a mistake, but having two gaskets is correct. Perhaps they needed the extra gasket to get proper alignment for the governor shaft? To remove the governor shaft you will need to remove the recoil starer cover and pull the governor vane and shaft out through that side. The governor shaft just sits loosely in a rubber grommet on the engine back plate.   

There is a black "U" shaped piece of spring steel that holds the lever in place. If you go to the website and go to the carburetor tutorial and go to the second page, you will see the diagram of the carburetor. There is also a lot of valuable information there on disassembling and reassembling the carburetor. 

SUCCESS...!!
 
Another TT300 comes back to life. Wallfish, without you this would have been just another one of those non-running display models. I cannot thank you enough...

SUCCESS...!!
 
Another TT300 comes back to life. Wallfish, without you this would have been just another one of those non-running display models. I cannot thank you enough...

SUCCESS...!!
 
Another TT300 comes back to life. Wallfish, without you this would have been just another one of those non-running display models. I cannot thank you enough...

SUCCESS...!!
 
Another TT300 comes back to life. Wallfish, without you this would have been just another one of those non-running display models. I cannot thank you enough...

I know just the hardware store to go visit. Thanks again...!!

There were 2 different sizes but I "believe" yours would be the smaller of the 2 . They are 1/16 and 3/32 ball bearings. They can be found at old school type hardware stores with all the little parts in the drawers.

The little steel ball bearing in the carb is not sealing. You can see the bearing in the carb pic above. That ball bearing sitting in the hole is the check valve. If fuel is pushing back past the ball, you can see it travel towards the tank. If the ball is sealing well, the fuel will travel through the carb to the engine.
Getting that ball to seal better will help with performance of the engine.