I just replaced the breather tube and now I am finishing up the throttle cable replacement. I'm combining the jobs since they involve removing roughly the same parts.
I attached the new breather tube to the back of the throttle body, re-using the little Oetiker clamps, by opening them up on a smooth tapered steel shaft and then I closed them down onto their tubes with a end nipper, gently squeezing. I imagine that small conventional hose clamps would work just fine too.
Here's the important tip: To install the 1/2" hose that runs across the top of the engine onto the nipple (that you can barely
reach through the very small opening on the right side of the engine, just above the fuel dis-connects) cut a 1"x 2" piece of wood to fifteen inches in length. Then cut a "V" notch into the end of it, just the size to accommodate the hose. Next, working from the front
of the engine, between the radiators, with your right arm, insert the stick until you can see it through that opening. With your left hand use a long screwdriver, align the end of the hose with the nipple and then push it on with the stick. Be sure to position the hose clamp correctly onto the hose ahead time. Tighten the clamp. Voila!
PS My breather hose was cracked and ready to start breathing oil all over my engine. Thanks for the video Kirk!