Looks good! New tires do help. The sidewalls usually go bad and start leaking.-- Tubes work for only so long then the sides just tear out.
Rims seam to rust out for some reason on these little guys too.
So far my flock has good rims and I have 5 or 6 new tires to put on when needed. 1 old off brand guy would need rims but I just took it for the transmission that sits by itself and can be used for some build down the road.
My econo horse has a short fat tire size on it, not the standard 4:00/4:80 x 8 like the regular horses do.
I did look at the auction parts motors for the extra pulley Techs, and none in the lot! Figured IF there were any I would try to get them.
They have several other motors I might bid on,---never know the condition of them,--just figure they are worn out but I see a lot of parts on them that would come in handy!

"A machine you build yourself is a vote for a different way of life. There are things you have to earn with your hands."