PTO carb.....
The carb on our Rotax without the fuel pump is the PTO carb. I don't see why he said you have to replace it. Normally, you only have to replace them if something has broken, then you can actually replace the broken part, not the entire carb.
If you purchase through our parts store, the PTO carb is about $426. But I don't think you need a new one. I think you need a new tech though. Bring him into our website and show him our parts store. Tell him to show you which part it is in your carb that is broken. I think he's just incapable of rebuilding your carb and is looking for the easy way out at your expense!:cheers: