Finally had a good reason to buy some high temp filament for my 3D printer.
The plastic/fibre bushing that sits between the intake and the carburetor on the little Yamaha was broken badly enough that the carb was barely hanging on.
I took some measurements of the bushing, after getting it out of the carb, mocked it up in CAD and after a few attempts managed to get a usable print. This CPE high temp filament is a bear to print and it took a while to find the right settings.
I took the intake off the cylinder for easier test fitting and found a piece of the old bushing in the reed block!
With the new bushing in I could finally get the little bike to idle.
Now it's just the small matter of connecting the carb to the airbox...
#3dprinting #freecad #3dmodeling