OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Engines Questions On Victa Two Stroke Engines Twin Supreme Wire.

I think it will be a good investment as they can be a pig to line up, so can be susceptible to cross threading.

Actually, I just recalled something about the screw thread systems that Victa have used.

The early ones, through the Model 5, used all BSW/BSF threads.

But from then on, they're nearly all UNC threads, with the sole exceptions of the crankshaft end threads - those remained 1/2" BSF.

Victa even had/have special AF/SAE hex nuts made with that thread in them, so that AF wrenches would fit every fastener on the mower.

So while the BSW insert kit will work [same 20tpi pitch, but slightly different thread form], the correct one is 1/4"-20tpi UNC thread.

Wow thats some knowledge for the bank!
I would imagine UNC repair kits are as easy to obtain.

I'm glad I got that set of AF spanners from K mart at the run out price of $5.00!! It's a delight using them on a Victa.